ASDI4TR 81-5018 MANPOWER FORECASTS AND PLANNED MAINTENANCE PERSONNEL SKILL LEVEL CHANGES * i Lawrence D. Hiowell, Major, USAF "Eng.'neering Specialities Division * LIO Directorate of Equipment Engineering I! August 1980 * TECHNICAL REPORT ASD/TR 81-5018 Final Report for Period 1 April 1979- 1 June 1980 Approved for public release; distribution unlimited DEPUTY FOR ENGINEERING AERONAUTICAL SYSTEMS DIVISION AIR FORCE SYSTEMS COMMAND UNITED STATES AIR FORCE C-, 3 03 09 00& L' O t..,.
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ASDI4TR 81-5018
MANPOWER FORECASTS AND PLANNED MAINTENANCE PERSONNEL SKILL LEVEL CHANGES
* i Lawrence D. Hiowell, Major, USAF"Eng.'neering Specialities Division
* LIO Directorate of Equipment Engineering
I!
August 1980
* TECHNICAL REPORT ASD/TR 81-5018
Final Report for Period 1 April 1979- 1 June 1980
Approved for public release; distribution unlimited
DEPUTY FOR ENGINEERINGAERONAUTICAL SYSTEMS DIVISIONAIR FORCE SYSTEMS COMMANDUNITED STATES AIR FORCE
C-, 3 03 09 00&L' O
t..,.
* I
NOTICE
WhenGovrmet drwins, pecifications, or ot her data are used for any purposeother than in connection with a definitelyzeaed Goerment procurement operation.,the United States Government thereby incure no reponsibiiy nor any obligaion
whatsoever; and the fact the govermtent may have forulated, flrnished, or inany way suppliod the said drings, spe•oifioations, or other data, is not to beregarded by implication or otherwise as in any er licensing the holder or anyother person or corporation, or conveying any rights or permission to manufacture,use, or sell any patented invention that may in any way be related thereto.
This report has been reviewed by the Information Office (01) and is releasableto the National Technical Information Service (NTIS). At NTIS, it will beavailable to the general public, including foreign nations.
This technical report has been reviewed and is approved for publication.
LAWRENCE D. HOWELL, Major, USAFProject Engineer
FOR THE COMMANDER
CLAIRE J. EVANS, 1t Col, USAFDirector, Equipment Engineering
1
Copies of this report should not be returned unless return is required by securityconsiderations, contraotual obligations, or notice on a specific document.
4
SECURITY CLASSIFICATION OF THIS PAGE (RWion Det*Entered),READ INSTRUCTIONS
9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROECT, TASK
Directorate of Equipment Engineering (ASD/ENESA) AREA o uNT NUMsERS
Aeronautical Systems Divisiov. (AFSC)Wright-Patterson AFB, Ohio 45433 Project AFSD0161
II, CONTROLLING OFFICE tIAME AND ADDRESS 12. REPORT DATE
Directorate of Equipmeat Enginvering (ASD/ENEZ) August 1980Aeronautical Systems Division (APSC) 13. NUMSER OF PAGES
Wright-Patterson Air Force Base, Ohio 454331 14. MONITORING AGENCY NAM6E & ADDRESS(II dilfereut from Controlling Otllc) -IS. SECURITY CLASS. (*I this report)
Unclassifiedis.. ECLA ICATION, oOWN GRAOIN G
SCHEDULE
IS. DISTRIBUTION STATEMENT (oftl oi . ,p.t)
Approved for public release; distribution unlimited.
17. DISTRIBUTION ST'ATCMENT (of the ebotrect entered In Block 20, it dtfformnt foSm Awart)
* I4. SUPPLEMENTARY NOTES
This report was also submitted as a dissertation to the Ohio State UniversityDepartment of Industrial and Systems Engineering as partial fbllf ill]ent ofthe requirement for the degree Doctorate of Philosophy.
I19. KEY WORDS (C,•*ne an reversew•ole It neseeay man dentitt by block number)
SKill Level Aircraft Maintenance Pro-20. ABSTRACT (Continue an reverse side Iftnooesq and ..ent. by bult±•vy- .. ..
See Reverse
DD , h.1, 1473 EDITION OF I NOV 4S IS OUSOLETE UNCLASSIFIED
SECURITY CLASSIFICATION OF T4IS PACE 3xmn Do's onifted)
...LICLASSIFIED86CUmir OF TISs PA-a O
Block 20. (Cont.)
SThe purpose of thid research effort was to wftabllsh - mstlia id eltimate
the effect of reducing maintenance personnel experience levels. The performancemeasures of interest were sortie/mission generation capability and manpowerrequired. The United States Air Force maintermance data collection systeu toobtain failure rates, interview with maintenance experts to determine estimated
Itask times for normal and low skilled maintenance personnel, and the LogisticsComposite Model to computer simulate the maintenance organization, are the toolswhich were utilized in this research study to develop such a method.
* Through this modeling technique productivity comparisons are made betweennormal (skill level 5) and low (skill level 3) maintenance personnel. A computeisimulation model of the F-4E aircraft is used with maintenance task time for
normal and low skill maint6nance personnel.•
When unlimited manpower is available, th maximum sortie generation capa-bility of the simulation model utilizing all still level 3 task time isapproximately 75 per-.ent of the maximum sortie rate of the mode utilizing allskill level 5 task times.
When manpower is limited to the minimum level capable of producing aparticular percent of this maximum, the model utilizing skill level 3 task timesrequires 30 percent additional manning to accomplish 75 percent as many sortiesin a given time period when changing from skill level 5 task times to skilllevel 3 task times.
A sampling technique is developed to acquire the inputs to the computersimulation which results in the same accomplishments as the previous technique.In addition, expected output is determined as the percent of maintenance per-sonnel that possess ea.h skill is varied.
UNCLASSIFIED
I..
a¸..° ;• • • ••. ,. : .='j
K I
TABLE OF CONTENTS
Page
TABLE OF CONTENTS ................. . ..
LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . LIl
12. Average Skill L,.,vel vs Sortie Rate . . . . ... . 92
* 13. Number of Personnel vs Productivity . . . . . . 93
14. Average Skill Level vs Productivity . . . . . . 94
i'.
b .: - - - - - ~
GLOSSARY OF TERMS"LN
AFR Air Force Regulation
DSARC Defense Systems Acquisition ReviewCouncil
Hit Matrix An analysis tool in LCOM that givesthe number of times during a slmula-"tion that any particular task or mal-function occurred.
LCOM Logistics Composite Model. A largescale discrete state digital computersimulation framework to analysenumber of aircraft, personnel, spareparts, and support equipment.
"MDC Maintenanve Data Collection. A systemwhereby aircraft maintenance data iscollected and maintained.
.MMHPFH Maintenance Manhours Per Flying Hour.The number of manhours of maintenancerequired for each hour that an air-craft flies.
POMO Production Oriented Maintenance Organi-zation.
PSR Performance Summary Report
Skill Level A number which relates to the ex-perience or job knowledge of Air Forcepersonnel.
Sortie One aircraft flight as defined to in-clude one take off and one full stoplanding.
TAC Tactical Air Command
"Task Time The elapsed time for a particular ele-ment of work to be accomplished.
.e -. 0 t
TMULT A term used in LCOM to describe thu
procesr of multiplying every task timeby a given factor. TMULT is parti-cularly useful in sensitivity analysis.
Work Center A career field or @et of relatedcareer field that mak4 up a workgroup that have responsibility forparticular maintenance of an aircraftweapon system.
WUC Work Unit Code. An alpha numericsymbol that represents a particularsystem, subsystem, or elemental parton an aircraft.
Constrained LCOM An LCOm simulation model (run) thatModel has a limited nimvber of personnel in
designated work centers.
Vii
-a-.-
CIIAPTn-R I
INTRODUCTION
Background and Research Problem
Approximately 60 percent of the total defense budget in
the United States goes to pay for defense manning.1 Some 35
percent of the defense manning is comprised of aircraft
maintenance personnel. Therefore# reduction in the costs of
eircraft maintenancwa personnel can greatly impact the over-
all defense manning costs.
The Air Force is also concerned with the recruitment of
sufficient numbers of people to maintain the enlisted force.
The Air Force is currently having difficulty recruitingj
enough educated young people to maintain present levels of
m~anning ,2
In order to reduce costs, there is much current emphasis
upon shifting wartime requirements to the reserve forces.3
'%udies are currently underway to determine to what extent
this can be done without adversely affecting the capabi-
lities of the Air Force. 11owevere the reserve units are
also experiencing recruiting problems, and a temporary solu-
tion to the manning shortage must be found.
a.'. 2
One possibility is to reduce the term of enlistment
from the current four yeorw to two years. This would have
the following assured benefits:
1. Entice more young volunteers into service.
2. Reduce the average pay scale of servicemen.
3. Make more trained personnel available to the
reserves,
4. Allow more rapid utilization of new trainees.
Some of the arguments against a reduction in enlistment
time include:
1. increase training costs since enlisted members
would have to be replaced sooner.
2. Increase manning requirements since experienced
personnel are more productive.
3. Decrease mission accomplishments since lower
skilled personnel will take longer to prepare and repair
aircraft.
In connection with the problem, it has recently been
requested that current methods of maintenance manriower
forecasting be altered to allow for effective tradeoffs
among personnel skill levels. 4 This forecasting is most
applicable to developmental weapon systems that must be
approved through the Defense Systems Acquisition Review
Council (DSARC),
The Air Force recognizes that there are three specific
,. requirements which enlisted personnel must satisfy to
% 3qualify for skill level upgrading. These requirements are:
(1) career knowledge, (2) job proficiency, and (3) job
experience.5
"Skill levels are generally defined as follows:
"1. 1-level - entry level, unqualified.
S2. 3-level - graduate of basic technical training
or initial on-the-job training, usually less than two years
experience.
3. 5-level - fully proficient and capable of un-
assisted performance, usually 1-7 years experience.
4. 7-level - fully proficient and capable of
supervising others, usually 5-15 years experience.
5. 9-leve! - supervisor or management level skills
and knowledge, usually 10 years experience or more.
Requirements for skill level advancements come from
Air Force Regulations (AFR 26-11, APR 50-23, AFR 39-23,
AFR 39-1, and AFR 35-1). See Figure 1 for the skill level
advancement diagram reproduced from AFR 50-23.
At present, maintenance manpower authorizations for
current and developmental aircraft weapon systems are
based upon an "average" maintenance skill (5-level). Thus
the research question is, "what effect upon mission accom-
plishment results from a reduction of aircraft maintenance
personnel skill levels?" In planning for manpower skill
level contingencies, management would like to know the
impact upon mission accomplishment of the average
AWARD OF VI SILLU LSV9L At$
-a.
Coc oil 0WASO OP SKILL VIS0' APMCO CCCK
J OIPEW
defle4 i Mptr 7 JoeP40PCAKVG OM PEPCIEOOC N CATAO G
gAloC 50-23aa NO NANC 14 8CeI&
* ~ ~ ~ ~~ O Fiur 1.iL Skil Lv Advacemn iga
AVrom61
maintenance person possessing a 3-level proficiency.
At present, no method exists within the military to
assess the impact of manpower skill level or proficiency
changes. The primary purpose of this project will be to
establish such a methodology. If the methodology estab-
lished by this project proves valuable to the Air Force
"within the current framework, it can then be generalized
to other services and industry.
Related Studies
One of the problems pointed out by the Comptroller
General of the United States in a report to the Senate
Committee on Appropriations is a weakness in the manpower
requirements system. 6 This report points out that the
military services operate nearly 25,000 aircraft with an
annual maintenance cost of over 6 billion dollars. Mili-
tary maintenance manpower is the largest recurring part of
this cost. Sixty percent of defense spending is for man-
power.
The military services are continually developing and
adjusting manpower requirements. Each major command of
the Air Force is charged with determining its aircraft main-
tenance personnel requirements. Most of these commands now
use a highly sophisticated, computer-based system that sim-
ulates manpower requirements based on selected input cri-
teria. This simulation systeat uses a preplanned framework
or format called the Logistics Composite Model (LCOM).
*6
This framework or language is then used as the basis around
" which a simulation model for a given aircraft organization
is designed. The LCOM technique is used to simulate the
iA teraction of the expected maintenance environment and re-
quied aircraft operations to determine the number of air-
craf\ maintenance manpower needed, and the number of spare
parts •nd support equipment required to sustain war under
some expected scenario. The LCOM system requires a
thorough understanding of computer simulation and statis-
tical techniques, as well as operational maintenance and
manpower knowledge. We will discuss LCOM in more detail in
a separate section later.
In an August 1979 technology report, Gordan Eckstrand
emphasizes the increasing concern that the weapon systems
procured by the Air Force be designed within manpower num-
bers and skill level restrictions. 7 Air Force regulations
now rtquire the use of LCOM during weapon system develop-
ment. However, Mr. Eckstrand points out, as the use of
LCOM becomes more prevalent, the model use needs to be
simplified and results continually validated. He further
discusses the manpower levels versus training versus system
design tradeoff and the requirement for further research
and development in the human resources area.
Mr. S. Craig Moore of the Management Sciences Department,
Rand Corporafion, addresses the manpower issue in terms of
skill level and pay grade. 8 He designates five categories
shift, broken into specialities in a particular fashion.
2. We have 24 F-4E aircraft.
3. We have on hand inventory of some given amount.
Reorder leadtime is 30 days.
4. We will assume all weather capability (or all
weather will be compatible for our mission).
5. Currently 75% of all maintenance personnel are
3-level skill.
6. Check out time for 3-level personnel will not
affect results.
7. Upgrade to 5-level takes six months.
8. Attrition of personnel is 10 percent per month
of which half are 5-levels.
9. Replacement personnel arrive at the same rate
as attrites but are all unchecked out 3-levels.
10. Management policy is to defer phase inspection
Sduring surge (first 30 days) portion of war.
11. One, and only one, 5-level (or above) is
assigned to any maintenance task whenever possible.
Management would like to answer the following questions.
1. What are the expected sortie rate and MMHPFH
during surge (the initial 30 days of war)?
2. What are the expected tradeoffs of sortie rate
and number of personnel assigned?
90
With this or any c.her particular scenario and simulation
we cad develop tradeoff charts to compare different manage-
ment staffing policies. Figura 11 presents the tradeoff of
number of maintenance personnel versus sortie rate for each
of the three staffing policies we i'ave discussed when 75 per-
cent of the maintenance force is 3-level skill. For com-
parison, this figure also presents the tradeoff curves when
all maintenance personnel-possess 5-level or all possess
3-level.
Figure 12 presents the expected sortie rate when the!,.'.'average skill level of the organization is varied while
holding the number of personnel constant at 210 and each of
the three staffing policies is used.
If we were to generalize this method of analysis for an-
" other field we would produce the management aids represented
by Figures 13 and 14. In Figure 13 we have number of per-
sonnel versus productivity. Each curve on this visual aid
represents one management policy or skill situation. In
Figure 14 we see the tradeoff between average skill-level
and productivity. Each curve would again represent a parti-
cular management personnel policy. Thus management in many
areas can benefit from this type of policy comparison aid.
From all this we can see the expected gain in pro-
ductivity when we analyze various management staffing
policies and skill situations. Although the example pre-
sented here is somewhat simple in that it assumes exactly
,-
b.
-. ~ - , - . - -- -
91
ALL 5-LEVE
•:~~PO I - CY 2
(:4
N ~2.o-
0
f-5
U.)
0.5- (II
100 200 300 400 500MAINTENANCE PERSONNEL
LEG!-"14D
Policy 1 Crew members and crows randomly assigned.
Policy 2 Crews include a 5-Level to maximum extentpos.nible but crews are randomly assigned to
Policy 3 Crews include one 5-1evel whenever possibleand crows including one 5-level have priority.
Figure 11. Assigned Personnel vs Sortie Rate
92
2.25
A"4
boS2.0-
U,
I. T. .. ... .3-LEVEL 5-LEVEL
AVERAGE SKILL LEVELI" (NUMBER OF PERSONNEL HELD CONSTANT)
LEGEND
Policy 1 Crew members and crews randomly assigned.
Policy 2 Crews include a 5-Level to maximum extentpossible but crews are randomly assigned totasks.
Policy 3 Crews include one 5-level whenever possibleand crows including one 5-level have priority.
Figure 12. Average Skill Level vs Sortie Rate
93
mU
PCmr aPolicy a
Polic 2 Crws icludea 5-~ve1 olnaimu ex2n
.!iZ.. • : PliPolicy 3C
d iue13 wig.o ,snnlY routvt
_ _ _ _ _ _ _NUMBER OF PERSONNEL
i.I.: "LEGEND
•'-Policy I Crew mem~bers and crown randomly assigned.
SPolicy 2 Crews include a 5-Level to maximum extenti•:•2•possible but crews are randomly assigned toS~tasks,
r•Policy 3Crews include one 5-leve1 whenever possible••"- an4 crews including one 5-leVel have priority.
ii• .Figure 13. Number of• Personnel ve P roductivity
94
* -..- *-.•. ~~
,&.. t Olicy 2
AVERAGE SKL LEE
V+. "-
'4 LEGEND
- Pol i£y 1 Crew members and crews randomly assigned.
Policy 2 Crews include a 5-Level to maximum extentpossible but crews are randomly assigned to
SA tasks.
Policy 3 Crews include one 5-level whenever possibleand crews including one 5-level have priority.
Figure 14. Average Skill Levul vs Productivity
95
two person per maintenance crew, the concept and the simu-
I4tion model ate adaptable to meny situations.
re
•.'
CH~APTER VI
CONCLUSIONS AND RECOMMENDATIONS
Research Problem vs Method
The research problem was to determine a method that can
be used to determine the effect of a skill level change upon
the sortie generation capability of a maintenance organi-
zation. The use of the operational audit technique and 14DC
data along with current LCOM simulation models of operational
aircraft does provide such a method to analyze the expected
effects. This method of skill level productivity analysis
can readily be adapted to other more general problems. Job
V. shops could be analysed in a similar fashion to determine
the effects of personnel turnover or which employees to
K utilize for overtime wotk. Bank taller experience versus
the number of tellers required to meet given specifications,
airline maintenance and customer service systems, abd air
traffic control work load are but a few of the related
situations that come immediately to mind as examples for
which a similar analysis may be performed. Indeed* this
type analysis lends itself to any nonrepetitive, large or high
volume multiple task situation where experience or skill
level affect individual task times.
96
97
Accuracies Achieved
The accuracy of this method is dependent upon many
factors. The skill of the interviewer, the knowledge and
experience of the maintenance personnel interviewed, and
the precision of the LCOM networking all affect the results.
The method of sampling and the number of samples can be
chosen for any degree of accuracy desired.
The sample sizes required for the desired accuracy for
any parameter of interest can quickly be calculated using
the techniques explained in the experimental design.
F'urther Study
This study was limited to the F-4E aircraft and the
numbers/factors calculated can only be applied to this
aircraft. However, the technique is general and can apply
to any aircraft system. it is also recommended that a
K similar analysis be performed for several other aircra-ft
weapon systems and the resuits be compared to determine
L ' similarities and/or common factors. It is further recomn-
mended that a stratified sampling technique be utilized in
such a follow-on study in order to verify the categorizing
of work centers and resulting multiplication factors. The
following method is proposed for a follow-on study;
1. Decide upon the weapon system to be modeled.
2. Decide the accuracy desired in terms of 1Type I
and Type II error.
ý98V 2. For aircraft with existing LCOM models, divide
work centers to be studlied into "small difference" and "large
difference" categories according to the Air Force Specialty
Codes as in Table 17.
4. Draw task times samples until the number of
samples equals or exceeds the "n" from the formula
a X
"as defined on page 41.
5. Test the power of the test as described on page
42.
6. Increase "n" as necessary to meet both restric-
tions.
7. For aircraft weapon systems without current LCOM
models perform the complete operational audit to include
both 5-1evel-and 3-1evel task times.
8. Network the simulation model as necessary.
9. In either case run the model with 5-level data
and with 3-level data (either individual task times or
grouped and weighted factor multiplication) utilizing the
source operations scenario.
10. Run sufficient simulation time to achieve the
accuracy desired (the same method as above will determinethe run time nicessary).
11. Analyze the results and report findings.
_ _ 99
Use of LCOM
The development of LCOM required more than one hundred
man years of effort and several civilian companies an well
as Air Force resources. The flexibility and detail available
*in this programming framework make it ideal for the type of
study represented by this research.
LCOM certainly is a feasible tool which, with all due
caution, can be used for many varied study efforts and
research problems. The use of the operational audit tech-
nique and M4DC data also deserve serious consideration for
future use.
Adaptation to Other Current Studies
During the 'ýourse of this study the research became
aware of several other on-going stuadies that might benefit
from the techniques developed in this study. For example,
a research firm is studying the effect upon aircraft turn
time (servicing time) and sortie generation capabilities
when maintenance personnel must wear chemical defense equip-
ment. If one were to consider normal maintenance (the
5-level baseline model utilized in this study) and degraded
(handicapped by wearing chemical defense equipment) main-
tenance capabilities, the task times determined through~
direct measurement during practice situations or thorugh an
operational audit technique, the same simulation technique
* could be utilized to answer nearly all "what if" questions.
It is recommended that the technique developed in this studyk4
be adapted to on-going studies such as the above.
Rueahccomplishments
As stated earlier# about 60 percent of the total defense
budget of the United States goes to pay for defense per-
sonnel. Of the defense manning about 35 percent relate to
aircraft maintenance personnel. This study develops an
approach to assess the effect of skill level and number of
personnel upon expected mission accomplishment. The use of
the techniques developed in this study can result in savings
in terms of manpower and management personnel policies. The
sampling technique described in this study can save money
and time. By using this sampling technique the required
computer time is reduced to approximately one quarter of
that previously required for similar studies and three to
six man months of data collection and analysis time are saved.
LIST OF REFERENCES
1. Comptroller General of the United States. DeterminingRequirements for Aircraft Maintenance Personne CouldBe Improved - Peacetime and Wartime, report to theSenate Committee on Appropriations, May 1977.
2. White, John P., Dr., Assistant Secretary of DefenseManpower Reserve Affairs and Logistics. Memorandum onManpower Analysis Requirement for Systems Acquisition,August 17, 1978.
3. Ibid, No. 1
4. Ibid, No. 2
5. Air Force Regulation 50-23, On-The-Job Training, May29, 1979.
6. Ibid, No 1
7. Eckstrand, Gordon A. Manpower and Logistics Factors inWeapon System Development, unpublished report of AirForce Human Resources Laboratory, August 1979.
8. Moore, S. Craig. Letter from Rand Corporation to AirForce Maintenance and Supply Management EngineeringTeam, Wright-Patterson Air Force Base, Ohio, January 8,1979.
9. French, Bruce D., Captain, United States Air Force, andSteele, Robert P., Captain, United States Air Force.Productivity: A Function of Skill, LSSR 11-79B,February 1979.
10. Asiala, Carl F., Loy, Susan L., Hameister, Ralph 0. andMaher, Frank A. Development of Models of MaintenanceResources Interaction: Definition of Data Requirements,McDonnell Douglas Astronautics Company, St Louis,Missouri and Advanced Systems Division, Wright-PattursonAir Force Base, Ohio, May 1978.
101
102
11. Keller, Kenneth R., Major, United States Air Force.Logistics Composite Model Student Training Text, 4400.MES/LCf Langley Air Force Base, Virginia, July 1977.
12. Technical Order lF-4E-06, Technical Manual AircraftMaintenance Work Unit Code Manual USAF Series 1-4EAircraft, June 1, 1978.
13. Air Force Manual 66-1, Maintenance Management, August15, 1979.
14. Simulating Maintenance Manning for New Weapon Systems:Building and Operating'a Simulatio'n Model. Report No.AFHRL-TR-74-97(II)", Advanced systems R-sion, Wright-Patterson Air Force Base, Ohio, December 1974.
15. Gunkel, Richard. Work Center Task Time Evaluation,"letter from Tactical Air Command, Seymour Johnson AirForce Base, North Carolina, September 1974.
"16. Ibid, No. 16
17. Giffin, Walter C. Introduction to Operations Engineer-ing, Richard D. Irwin, Inc., 1971.
18. Lindman, Harold R. Analysis of Variance in ComplexExperimental Designs, W. H. Freeman & Company, 1974.
19. Ibid, No. 18
20. Hogg, Robert V. and Craig, Allen T. Introduction toMathematical Statistics, Third Edition, Macmil"an ub-lishing Co., Inc., New York, 1970.
r-
- . , ' - , k S L t .-.--
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Fitzgerald, Baldwin G., Captain, United States Air Forceand Miller, Phillip E., Captain, United States AirForce. A System Dynamics Study of the Factors Used inthe Measurement of an Aircraft Wing's Capability, LSSR23-"8A, Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio, June 1978.
F
105Foley, John P., Jr. llard Data Sources Concerning More Cost
Effective Maintenance, AFHRL-TR-76-58, Advanced SystesDivision, Air Force Human Resources Laboratory, AirForce Systems Command, Brooks Air Force Base, Texas,July 1976.
French, Bruce D., Captain, United States Air Force andSteele, Robert P., Captain, United States Air Force.Productivity: A Function of Skill, LSSR 11-79B,February 1979.
- Gay, Robert M. Estimating the Cost of On-The-Job Trainingin Military Occupations: A Methodology and Pilot Study,AD-783-936, Rand Corporation, April 1974.
Giffin, Walter C. Introduction to Operations Engineering,Richard D. Irwin, Inc., 1971.
Goclowski, John C., King, Gerard F., and Ronco, Paul G.Integration and Application of Human Resource Tech-nologies in Wleapon System Design: Coordination of FiveHuman Resource-Technolo ies, AFHRL-TR-78-6(I), DynamicsResearch Corporation, Wilmington, Massechusetts, March1978.
Goclowski, John C., King, Gerard F., and Ronco, Paul G.Integration and Application of Human Resource Tech-nologies in Weapon System Design: Coordination of FiveHuman Resource Technologies, AFHRL-TR-78-6(II),Dynamics Research Corporation, Wilmington, MausechusettsMarch 1978.
Gould, R. Bruce. Review of an Air Force Job SatisfactionResearch Project: Status Report Through Septe er 1970,AFHRL-TR-76-75, Occupation and Manpower ResearchDivision, Lackland Air Force Base, Texas, Air ForceHuman Resources Laboratcry, Brooks Air Force Base,Texas, December 1976.
Gould, R. Bruce. Air Force Occupational Attitude InventoryDevelopment, AFHRL-TR-78-60, Occupation and ManpowerResearch Division, Air Force Human Resources Laboratory,Brooks Air Force Base, Texas, October 1978.
Gunkel, Richard. Work Center Task Time Evaluation, TacticalAir Command letter, Seymour Johnson Air Force Base,North Carolina, September 1974.
I
106Hendrix, William H., Major, United States Air Force..
Contingency Approaches to Leadershi a A Review ariaSynthesis, AFHRL-TR-76-17, Air Force Human ResourcesLa. oratory, Air Force Systom Command, Brooks Air ForceBiase, Texam, Junae 1976.
Hernandez, Florenclo, Lt Colonel, United States Air ForceeCoco, Terrell T., Captain, United States Air Force, andHamm, John L., Captain, United States Air Force. AStudy of the Impact of Personality Differences onTroubleshooting Performance, LSSR 33-77A,, AiN -ForceInstitute of Technology, Wright-Patterson Air ForceBase, Ohio, June 1977.
*Hogg, Robert V. and Craig, Allen T. Introduction to Matie-matical Statistics, Third Edition, Macmillan PUblishingCo., Inc., New Yori, 1970.
Horowitz, Stanley. Maintenance Personnel Effectiveness intheN~ayAD-A021-581, Center for Naval Analyse.,
Arlington, Virginia# January 1976.
Iýpothetical Pre-AccoMplishment Time Data for 16 UnscheduledAG aintenance Tasks,, Rand Corporation, Santa Monica,
California.
*Kelly, Carl S., Lt Colonel, United States Air Force. AnImproved Approach to Managing the Classification,
Traiingand Assignment of Aircraft and AvionicsMantenance Personnel, Report No. 5968, Air War College
Air University, Maxwell Air Force Base, Alabama, April1976.
Keller, Kenneth R., Major, United States Air Force.Logistics Composite Model Student Training Text. 4400MES/LC, Langley-Air Force i.-ase, Virginia, July 1977.
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107
LinLz, Larry M. Relationsh)ips BeLweun Design Character-istics of Avionics Subsystems and Training CostTraining Difficulty, and Job Performance, AFHRL-TR-72-70, AirForce Human Resources Laboratory, Air Force Systems Com-
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Occupational Survey Branch, Occupational Survey Report, Heli-coeter Maintenance Career La der, AFPT 90-431-288,United States Air Force Occupational Measurement Center,Lackland Ait Force Base, Texas., November 30, 1977.
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, a
108
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White, John P., Dr., Assistant Secretary of Defense ManpowerReserve Affairs and Logistics. Memorandum on ManpowerAnalysis Requirement for Systems Acquisition, August 17,1978.
.5
t-I
S - ' 5 -- -
109
WhiLun, Justin C. and Lindsay, William A. Enlisted Per-sonnel Assignment Syste•m Resoarch: Status Rge ot,Ia Study 10364, OJ6)-CR-87, General Research Coriation,McLean, Virginia, December 1974.
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I
APPSNDIX A
Selected Referen~ce mater~ial
i110
a-
_ _ _ _ _ _ _ _ __-_ _
?*MANTE1NANCE EPEI~ILNCIE DATA (AFAI 6G-1)
5-1. 1`11U1ntosr. The potro--k tit tis' rhbo1tis in w (3) It maintenance Is done on compunients thatoutWi.0 the Maintenance VI1ta colIlction 01Mt)C art removed or removed and replaced to facilitatesys~tgn ostabl;Ahed by. AFR f.6-14 and A FM 66-. 1. maiintenance in the same''room or oen ImmediatelyThe lii()C is the primairy source tnt Air Force adjacent to the end item; this is recorded as en-r.~iabaiity and ritiinkan~inaility dota; therefore, hiaw equipment maintenance. If the Individual that to-understanding of Its objective'o, simacs. and limitations moved the component hais to leave the itionedlateIs essential to R & 14[ data us.ors. area (deflined ait olit-olf.Esglt), an AFTO Form 330
will be prepared triio-rletif) the status of the re-64. ODJECTitT.S. The Maintenanc tie Ainta Colirc- moved rcnulbonent. in thin regard. ivhen personneltion system was desiltned primairily A% it baote level front nne workeenter rrn~ove an item and send It toproodufdion credit and management, inforimatirin ays- j.orarnnel with a different workcentor code flattern. The ohjectikes are to pirovide m.ainteriancet iainteniance, the lotter workeenter will record Is asmanaerois widbyth e inrassine al inU nac pere prouc)o at upento maitnanem.trqieetuiuacm plna hers byth e inarmaicne niut theprodcti oer-(4)quipento maitnagmnt euieens.uiusonnet. and to Identity Mti equipment oin which procedurce exist ror engines. All maintenance at-work was accomplished, why the, work was required, conirlished on ras turbine and reciprotcating enginesand the action required too complete the itob. Tie installe~d in aircraft. missilog, or AGE will beMDC systemt identifies nia ten-iner requltirements recorded -%% on~tquij',nont maintenance. Removal andend prohlern areas so tha-t flppropriaat ftrinnger"Ont replacement of grao turbine and reciprocating enginesaction can loo taken to effiectively %upport amid meet for aircraft, misqiles. or AGE will bo recorded asthe established operational ro~luireovirnls, In addi. on-equipment maiintenance with the engine treatedtion, the bMDC system is designiou too pravide data as a component. SIhrip work on all removed gas tur-to APLC for maintenance eigrineering and logistics bine Fngincs and aircraft reciprocating engines willmanagement. Selected darta is also provided to the be treated zI, end item maintenance with on-eqtuip.major commands and IIlJ USAF' In accordance with merit and alTweqoiloment recording concepts appWlagIn.AFbIla 66-267 and 66-M7. (TO 00-20- 2-4). Shop work on reciprocating en-
gines reiroved (rotin AGE will be treated as coin--4SCOPI'. Vlh- M.'C -y-tcrit is appllkabli to i.l poinenti in~aintena'i-e ind the oiff-equipment znainte-
functions outlined in AIFI 6C.-1, and requires that nance coticept will apply.all maint-rnance ý-ctirons invwlvira direct labor ex- (5) Each wvork-center participating In a Jeb willponditu~-is lie rec )rdcd anti reported In this &I stemiJ re ordnmintenanice sictions and labor expenditures.anless tieniptpd by TO0 f-*.1i) 2. The- o stem I, np- The duciamentntion responstibility rests with theplicable to t)~e life c~cle of aircraft. missileit, pirnI'Id 3enior repr~eritntive from the viorkeenter. Thesecon~run ientioni. rlectronris. mid mpteorolog.irl doicuments 'hill he rutiirned to the workcenter super.
equipment, And relatedl end items beginninsr with visor who 'viil chreck for accuracy and completenessoperational test and ev~aluation -in deseribed in AlFit pirt uniso o rcsig110-14. This includes compatible data eotigo b. Da~ta Forms-contractor maintained equipment and maintenanceaccomplished in depot facilities. (1) Use of the AFTO Feorm 349. The AFTO
Form 349, "Mnintennnceo Data Collection Record."S-4. tDOCUIMENTATION CONCEPT. The A VT 0 a eindiihsrcet eimhyfrueb lFormis 346. 349, and 3M)f are utset as source docu- majority of organiiations in recording maintenanceitents for the maintenance data collection system. a ctionse on various types of equipment. Recording
and. data collection procedures pertaining to thisa. Recording Concept procedures Pre dividrd into formn are autlined In the OO-.20.-2-series technical
two basic categeries identiArd ns nonPtteqiiimnt and orders.off-equipment maintenance documentation. (a) Far on-ecquipment w'ork the primary
(1) Maintenance nctions accComplisheIid on ronm- epitrirex renuired ona the A ITO Form 319 are block Ipleto end Itoms of etwiipmnilt, (:ircrjft, m Issilrs. (Job Control Number), block 2 f nVrkeenter). blkwkremr,%ed engines. xround ;~nniii.t~~ erti-i 1 (11l) Nitiiher). block A I lin.acis ripplicioblel, ondmreteoroloigical (MPtI), triuiner-. \rrotp:,c@ C riýnd c:.ltirimn I1 thirough K. Fo'r in-shop cngine in.Yquipnient (AGEf) Ind nuicluri-rirpnnie are iii riti. prinmary entries are ro-quired in blocks I ;Ind 2.Aed as on-equipmt-nt i'ork. I11 prmii ' i, onsists b~lock i (Fenirin 11I)) ;Ind in columns 6 thirough h.of support general Ia-;k, inspert iam, reni-v\ at .. d ror offtr-Ip~ipment avork on remme d conipoonfivi.replacement of conaporemoits, rix-in-place maintenamnce pir rimary entries are ruequired in blocts 1. 2. 4ijnact~ions, ande modiltifctions. bluck J o~r 5S block 19 (Federal Rtuppalv C~it.
(2) In-ithop rotiintenama-er .uct.i,5i molsing mtfitrr- ( FSCi ). block 20 (Part Number), and columns atouijiatoo level niaintenance, on rrino''tA r-iniponmits through K.Is Ide.titifld an aTeurr n. 0 itemance. rhiqi U ý.tp to feo rei.'ten on-eaiulpmrent niai~nte.primarily crinsists of be-nt.ch.-ciic ro-pa~ir or notin~flc~i- iiines actionis eo' rrrol bv a single Jab control numberlion of compaonents and asseniblics. And nondestruc- uglinst A sini~le Ill niumber, nutd accomplishecd by A
* lve inspection. sminle tserkicsnter inn:' be reported on a single copy
copy avoilcible to DTIC dces riot
pemuxit fully legible reprooduction
of the AFTO Forin 310. It more action lines are exp..nIded, and 11.ts cnnsnul~tm to satisfy a mallitte.I'equired, 3nuthrr A PTO Form .4 natanngte once. requiremernt whether it be a dinerepancy, 4.1sanie Job control nunilmer, I1) ritr'lier uimi workecoter insi''i-tiun, or a 1 lc,ln Every action taken that iscod@ 19 completeit anrd the arti ins crontinuod. This re'hit-A to a job), regardires of 'workcetnter, time or
,-. recording pr,,c.'durs- :also waipliis to tifritlcuipmtent plico. will ca~rry the' sa.nic jOb coct vol number thutactions; ý.oe- or, onap'jrl~t rild uit-equ plinglit wu'.'. isti ina Ily, n-illred to the job. This procedureactions will flot he c'init,inetl on a1 single copy, of tho, is lweers';ary ts 1wriniit control a( all rielatcd actions,AFTO Fori 3J40, The triur itemis cuiiJt be rmporte'd aeill to liru~idp tlir caprability to tic thein together in%by a single line mntry If tire ),)h contro'l mmildeor, wvork data systems to identify the total job for analvaisA11t, action lalion, how%% ralfunctiunel arid %-heni purposes.discovered -odes :ire all Cho aieenq and a unit count(2 VrctrCdeTh vlceea od
V..of four Is enttered, Similarly the A Fl') Forms 350 coiussts of five cburaeters that identify organisa-prepared for 5flE;p procesving of the' four black boxes tionat eleme~nts to which maintenance personnel aremay reflect a quuietity of odore than uric only if tOe *a.signvd, ar locations to which they may be dis-job contr-l nunibLr, work unit code, federal suppily paitcehd. Staetida~rd wvorkcenter codes are used by allclass and part number art the sanic. If these ele- organizations enigaged ill the maintenance functionsments are different, a separate A FTC) Formn "M oulie It AFM Mr,-t. in general, the co'de enteredmust be prepared for eachi item. Scri;T , controlled !it the worlicentcr block of the Arro Form 349and time change itenis iwith an asterisk in the wcirk indicates the workceneter ef the Individual doing theunit code manual) must be recordled on tin individual work and not necessarily %% acre the work Is accom-basis. (for examrple, only one item per AFTO Formns puished.l
39 used 350) (3) Identification (ID) Number. The ID num-(c) The AFTO Form 319 can Le ubd!~ er conisists ot six characters, and ii Used to identify
identification of both the end item of eqluipmnent and equipmnent on which work was performed or f(rum& cornpontent O~r engrine change actions, for weaipont v'.hich an itemi was removed. Tbe first character ofsystems and equipment that are nlunaReej1 under the t'tr ID) nuntber is the first character uC the awnting
*.Advanced Configuration Managp.'ment Systemi work-center code. The second character of the ID(ACMS). for tim~e change item.s, for special report- number is the first character (prolix) of the equip-Ing on% tires, and for reporting off-equipimwnt mainte. owilt classificationi code such xt A for aircraft, Bnance uction. for G~rouned Hfadar or hi for Ground L~aunched
(2) Use uf the AFTO Forin 350. The AFTO Missiles (AFM 300-4, AI)E NMA-I56-XI). The lastForm 350, "Reparable Ittem Iroceising Tag," is a tour characters of the M - urnber normally are the
K two-part perforated form that is attached to comn- last tour positions of ttie _.,uipnment serial number.prnents that aure renino'ed fronm equipment end items Tt)ewiicrl procerdures for assigning IL) numbers are
Land serves as art identification and status tag. An- contained in% AFM 6SC-267.other important aispect of thtai form is that 'it serves (4) Equipnmeot Classitication Code, The equip-
as a source document :'r'rtnining to R~epaired This nient classification code consists of three characters,Station ( HTS), Not ItepAired This Station (NIIT.), arid is assigmid to identify u'ircratt, missiles, groundand coned-mnatiOli acteons fur the supply 5system. c0111rnuhicatiunsl, electronics, tind meteorological
ThisInfrmaion s iputto te b5S U1)pY Cin- equipment, AGE, trnineri, engines, ground launchedputer to identify stockage requi reme'nts. Inforinaitiun missile reAl property installed e Ldipment, munitions.pertaining to IITS, N'RTS, arnd cond.'nirraticiiis is also arid precision measureinerit equipment. Codes areforwarded through the suipply 's~stemn to AL as. u~AlSu assig~ned for research and development andfactors for computiog the %torlrI-wiule ipares re'- shop work. Slost of the equipment classificationquirernents. Recording procedures for tne A FTC) codci are assigned to specific equipment such asForm 360 are outlined in thre 0OU-20-2-scrir's technical LGM-3011 missiles. Some of the codes are assitnedorders. by category of equipment or work such aks non-
(3) Ure of tike AITU Formt 346, "Maintenance registered ACE and shoo work that is not identiniedDatak Colle-ction Production arid Scheduling Rtecord," tu a weakpon or support system. The authorizedThe AFTO Formn M5 is used for scheduling the !qiprnent classification codes are contained in TOcalibration of l'reeilsiun Measurbig Equipinient 00-20-2.(P31E) anid for recording all nridntenrunce on prcci- (6) Type Maintenance Code. The type mainte-
&!on mieusurerrient viluipinci" for input to the NItDC naiice codt conhists of one character anid is used tosystemi. The A 1-TO Form 314; moY also be used Ide'nti fy the type of %%ork that was accomplishedfor scheduling calendetr wiainterianiec require'nients such as scheduled or unschedl'nl- rnainte-ati~ce. Typeon any equluipnient withinj tre imaintfenance cornp;lex. manintenance cudvs are listed in each work unit codeNote that this p.,rw~ins oifly to calenidar require'- ni;,nual for inrdividu,d types of eouipmeivt. A comn-mrents. Scheduling procedrures Jirrtaiiii g to the pltlito uhizrtpemienceodss
AFTOFor 346areoulind n AFR G Th. Min- contained in AFM 300-4, volume XI.tenance recording procedures (or tire A FTC) Formn()Wr ntCd.Th okui ecn
348on ME re utlne- In'ro00-0- O-6sists of fie chniracterls, and is used to identify thec. Data Elements: systein, subsystem, and comnponcnt on which m~ainte-
(1) Job Control Number (,JCN). The .JCN n~ience is requoired or on %%hich mraintenance %%as ac-JPnsists of seven characters, the first thrre are the cumiplished. Thiese codes are published in %%ork unitJlulan date and the lust four aro n unique job number code manuals for each %%eeapon and bupiport, systemfor that (lite. ihis pruo ires a meatir to tie together arid in code manuials by type of equipment for se-all on- and off-equipmenit, actions taken, man-houis lected ground C1EM, :.raiters, AGE, munitions, PtetE,
113Kand shop, %%orL-. A limit, Li ri,,iher tif work init vnilei Alpihatieticall (erfmlnion) Anilhinumerical (coide) so-are assg~il n in a spir'cel .ae',ir , i kfltl ti t~isl.! or qur'nre. Only thlf hit%% nialfunctionrdl codes that atita genertit niature suph as -je~liti nipr sr--rtling., Henn nppilienble will lt-e liste'd in each work unit toileing, inspection, storaige ~re id r.;fetrerdkl. niancu.,. For e'.:mniple, how ninifunctinned codes Ap-Ing, %%aprm hedig rd rpitv l'pt~s licalete only to a solid rocket missile- will not b.Although they are' work imit rinch's, they m~e iclenti. listed lie a grolind CrPht work unit code manuall.,fled ai "Support Generral Coeie'ti." The. first t%'o osi-tions of the work unit ciach's for Aircraft, v~romene Note: Due to (lir naiture of support l)pe ,.rk.ratlar, and missiles are' ttanclard s~stcni code's. rh.ey (lie recorditg of nrt~ciei taken. ithlen discolered.identify functionil systeuivi siuch ais flight control find how nialfun~clileneeld rodes is not requiredsystem, code's antecimn %s~ rmie, or launch control Sys- with support geiieral work unit codes.tim. The first t%%o positirnnq of the ssork uiiit codesfor support equipment identify tylles of eiquipment, 9-S. The foregoing paragrnplis of this chapter de-such as ground piowered gienerators. or ond itrivis scribe the AlIMS~ objectives and reporting concepit noof equipfinint, .ttih as n troinvir. Thee first lim~ition of relatedl to -the ha13e rrnaintenanc,7 'eivirviiiment. Inlsupport genieral cnider hegin %is ih A zero; and this in order to pirovide AFI d. dAt on onan. mnna e eventsstandard in All work unit ceoie manuals. The third as they occur worldwide, most of the datak docie-And foturth positioni of the' work unit eode identify nionited at AF bases ucnder the TO 00- 20-2 series aresubsys~tenm or major assemnbly. The fifth position or submitted to JtQ AFL.C for use in logistic supportthe work unit code normally idenlirion tenmerable And related cngiaiecritig derisions. These dlata arcitems. received and proe'ossru centrally- at IIQ .A PLC in the
(7) Units uti~mpletrd. The isoik unit code it D)O5P P'rodluct Performanrce .systeir. This daita sys.combination ss ith .ati action talmri codle is ti-ted to tent tint only recrnivei rind output reports containinfgdescribe a "unit of s'ork." An entry if( one or miore Reliableity and NMaintainability (Rt and M) (actorsunits conmpleted must alst be mnatie in the, UNITS %% Ith. n' its establishedl coinpiter prograins but at-toblock of the data coillection forin in order to show mervierms other interfaening flat~a SiMs~rols with sourcea comipleted Action, An exaomple or A uanit or work il~ttI. Sonit (if thee' intcrfacing data s~'stenifi Also out.would be n work unit codle foer An wntentna, ic ith an put reports contnining It andi lt factors individueally&ction take'n codo for rremos ed mied replviced, and a urilctthr taisedonptrpogmcoeunit count of one, for examplo', one Anitenna inmociird trots. F'iguires 9-1 through 9-18 illuistraete the dantaamid replaced. Ity using arlehitional coides to iciv'ntify nfo,. fromn point ell origin through ;he D056 rnaicrthr- raid itoni, the t. pe t~f oi:Jinicn:,nmrtv leing ccecimi. pyst ~n prod'i's Av nil to othrr interf(acing~ syztuliiiphishnet, Whene the inie~inteeii.lice reiltni rsnont i%%, dk. %Is hch xre t, Irki by i tlit: sane source' daeta. The fol-covered, howv the it-tn inIftimictioned, amid thee tirnhe lowing page's of this chapter explain sonie of therxperinded in acronipi s liiii he' work, a indl tOf produlii' terios usedl in the l)OrG And sampl~es of outp~uttion credit systcm ako provifies infornation e~ssential -eports containina R ant it M fctors; Losscv'rr for a
forni~ineoaceand mr~terict neanaigement. full undnirstanuhing or x~xtemi capabilities refer to(8) Action Taken Codo. Thle Action Utake'n crndir FCIG-~ n 7-5
conskts of' cne chiracter usrd tn identify the eoiloite' -. oitoisoI And Mi parameters and termsruaicc. action that wans tahir'n, such as remov % sdinteD16caadytmrej-4ie. Action ttken coides are starida rd for altl sdi h )~ldt ytmequipment and are listrid in allt work unit code a, Type Hlow fthalfinmeliomecd Codes.manuals. A complete list of axithiorizeet Action taken, M1 Type I-These codtes indicate that the itermcodes is contained in A YNM .10i..4, volumre Xl. no longer can mneet the minimum epecified perform-
(9) W'hen Discoverre. Code. The %% hten di~covored ancer requirement due to Its own ',e.ttrnal failurecode consist~s of one character Aned is used to id'entify pattern.when a deofect or main tcrn tie- requiiremenrrt %%as dis. (2) Type 2-These coesr Indicate that the itemcoverod, such as during a q'e:ility control inspe'ction. annolivnceth spifdpromrc-r.When discovered codfes arc tinted in each work unit cin o ue'rnctheseiedrrfmnc r-
1.4code mnanuall for irid;'.-idieal t~ prs of eiluieirnient, A qpiemircne'et itue to somie induced condition and notAcomple~te list of aiuthdorire'l %%hen discovinreel c-ndie' is eluc to ilAt own internAl fnilure pattern.
containvd in AFM :01 .1. %olu'eee', X I. Oii~y that per- (3I) Typr 0.-Thrxe, catdon indicate maintenancetion of the %%hen disxcoierrtd cridi' definition that np- resnurces were e'qec'md~d ilue to policy, niodificatinns,plies to ecseiipnieet listed in the work unit rrdeu itrimis loc~ation, cainnihl;iiztinn and other no defect
-tanual Is to li'ued. Vor '.x:imcure, milien dibscori rct omtioiseitnat the tinie mainteneance wAascode 1), In-Fl'ight-e Abort! [toing Ali 1 Otirra ti'n, nccrcmtihihcd.
~oul belistd i [Ii AG isork nitcodama uat b. Failure orciurrecei. The computer definition ofas V, lPurivie AGEF Op'erationi. a failure occurm corie relantrd to a Work Unit Code is!
(!0) flow Ninirunctimeir-fl Coov', The huw mant- ,;itiy Type' I How M-rlfunctioned code reported Infunctioned cemie consists of thte e chnrncters amid is 1`010iiihcatinn wvith on action tnken indicaiting repair,used to :Ientify hn\ir the c~jicinolrnnt ina cctionvil, ictju~mniot or itemt replacement and one or mooresuch as c rnc'icd. To p mci icI nia xirieum li Ill ty, thoese jinto produced.codes are also itsitt tn iditctroiy time cointi a nrc tech-nical order status riicdimesor to iiwt hat a c. (f laleity per Appicalrtion (CQ'A ). This Is themaintenance ticrtinn didc rnt result frontl a dr-forrt, A tuanmtity of idlcitivil installed itemns on a single unit
4complete tist of withoirized ho"% jialfnunrtiniuut codrc. )f equpipent that arc reportable under the sameIs contained In AI'M 3U0-11, soiunio XI, in both work unit code.
Copy avcAlub1h, tco DTIC does not
pe~af itxnyl egiblo a id.Uf1P-
114
M(AUT•ER(•CE DATA COLLECTIOn! SYSTC4
OT4•O'XtLO AT AF BASES
Maiutenance at or on the Maiutenance Accomplisbed In
Aircraft or Equipment lepair Shops on Items 3eMoveOFrom Aircraft or lquaiment'
- eoded on A'.0 orm '9 so Data Automation [E 31oded on AM Form 349or Coaputer Processin .
ageF4 n RtportalPrerormatted Data ____________
For AFLC Special Study Reports' RCS: LOG-•.O0(AR)7I 142 | -a-eLevel Inquiry System
-T-g- SeLtdDt~a f orAutodn Ma~ 11IhAJ
a,.
C:• 3.15
"MUL D056 WExiY ca V oneL...
'a ~2T50 AF WOQ Compute r*Data From AF Bases Operations Branch (HIQ APLO)
d. Uise Factor (Ho). This is a ratio of actli'll II!ie selective retrieval routines. (Sample Rleport Fig.* ~~~time of individual Work Unit Codles to filing or. -.
e. Ateap Tine Iletween Failuare Occurrence P. A*jilitginc Artisont, Man-houirs andi Aborts by(MTW).Work Unit Code, ItC.4: 1.OG-NDI0(A)ITO7. T, is
XITBF =End Item Operating Titnel x K, X QPA report provides six nmonthn of selected informationQuanity of Faiure by inonth on every roportrihle Work Unit Code as-
*End Item operating time is determined me Ir-1 ige to a particular weapon or equipment. Thiis*3owsa,,.formation includes aborts, failures, maintenanew
Actions. MTJI1F, MhTflM and man-hours. Both "on"For aircraft-active aircraft inventory flyin' and "off" equipment data are considered for displaytime fromt AFM 654110. In this report (except for some typ-s of AGE.For other equoipment-Active inventory flying trainers and munitions). (Sample Report Fig. 9.4.)time from AFIN 65-11lJ. f. Abort% and PegrAded Alepts, RICS: WOD-
f. Mfean Time Bletwuen Maintenance Occurrence MNI0(AltI7171. Thin report provides current month(M~M).detnil Inforniation oni Work Unil Codles and part
liTMb = End Item Opcrating TiicO x (IPA itumbers causing aborts, mission failures and do-QuantiTty ofNtaMaintenance Occurrences* grad~ed Alerts. For ground equipment, this report
'All types of actions described In paragraph i~tre tm ~sn qimn onie Sm9-61.pie Report Fig. 9-9.)
g. Action Limit (Al.). This is a form of failure g. Mtaterlcl Safety D~eficiency Rleport, RCS: LOG-limit expressed in MITRF (hours) And used in the NM10(31)7178. Thlis. report lirnvidos twelve months
* .computer program to compare current failure rates of selected Information for Work U~nit Codles Appli-w6ith past history for the same item, cable to a Mission Pesign Series aircraft that have
ii.FaiureLiit.Thi i th aceptbl quantty been reported as contrihutirng to an accident orh. Filur Liit. his s te nceptale uantt incident or have been the subject of an EmergencyL4 failures of an item for a 30-day period. It is as. UnaisatoyMteriel Report. Any of the abos esiged ~'thealstei nanxeran usd i te crn events having occurred within the past twelve
11uter program to compare current period failures mosiths And recorded in the 1)056 Aystern, drives thewith past history for the Sanme item. computer to display failure rate, trending ind
9-7.l)06 OTPU RFPORS. "Iete~ riput,. nn- predictive mainteiianrce experience data in this reportS-7.DO5 OUTUT EPORS. pircrd f-lmfs on as vi'll as thti quantity of hazard conditions reported.t~ainirig R and NI related datn nrt' idetr'ifie.d rind brielly (apl eptii.9')descrited in the following sulitatagia~phs.
a. Selected Work Unit Code. Conirol Identifirr, It. Work Unit Code Corrosion Summary, RtCS:RICS: LO0G-MMlO(Alt)flf-A, Thi% reprirt provides LUG-AIN.lO(AlI)7l7% This report provides threesummarized information on Work U.nit Codes within months of Information on a weapon or equipmenta weapon for the current reporting period that identifying Work Urtit Codes, number of units, man-breeched either the Action L~imit or Vailure ~imnit; hours and labor cost for co~rrective maintenance duehad Fmcrgency Unsatisfactoury M.ltteri,:l Rteportinig; to corrosioti. The 25 Work Unit Codes incurring t-hewere high man-hour consuimers or were lui~rh corro. hilthest corrosion repair cost are rank ordered andsion repair nuannhour consumers. This report Is used displayed sepasrately in the report for ease of identifi-as a management reference to identify items that cation. (Sample Recport Fig. 9-11.)may warrant detail study and evaluation. Sample i. S)Stn SUh.Sltenl C(orrosion Summao~ry. tIC.S:I rpor Fgur ~LOG-MMO~l(AII)1l80. This report is produced as a
b. Detail Maintenance Arlions for Selected Work comparison report to It above using the s.-me threeUnit Codes, RICS: IOG-.N.I0l(,Alt)7I6?. This report months of corrosion repatir dat~a except that the in.pro--ides one to twelve months n! "on" equipment in- fprmation is s~uminarized to system/subsypt'!m levelformation on Work Unit Codes %%ithin a weipon for and base location. (Sample Report Fig. 9-12.)detail studies, It is availabhle onily on special inquiry
.nd an e lmitd indati pesetatin b seectve . S~stem, Suhssstlcivv, Woik Unitil Code Failureandrieanelioptiens (Smplea ~porsetaFig. by-selc) v Su Jmmaty, tICS: LOG-511NO(Alt)I183. This reportý4 rerea pin.(apeRpr i.95)providcs twelve months of information related to
c. iDctail Shop Actinos for Selccrcd Wiork U~nit current quarter caperienice for systems, itelect-ed sub-Codei, RICS: LOG-NDItO(AlttVl8. This report is4 a s)ystemis and Work Unit Codes on ;%n aircraft. Thecompanion report to paraigraph 9-7h rind provides data djiplayedl is rank ordered by system, subslstcmdetail inform~ation from supiportinig re'pair slupý; on within sy-;Lem and Work Unit Code within subs~stemreparable items removed from a weapon. It aulso bnf~d on the quaritity of failures incurred, Infornia.displa)s parts replaced during shop repair. (Sample tiont displayed includes the quantity of failures.,
4Ritport Fig. 9-6.) hITRP, and a ratio of current quarter to the lastd. Smnisise AlaoleanceArloni or lec td elvoe months experience. (Sample Report Fig.
WVork Unirt Codes: 11(2: LO(-MM00(lI107;'J, Thisreport provides the sabie type of informiation Is k. F~ailurs Hate MIAt for Selected Work Voltdescribed in paragrophi 0-7t, and c but %%ith lesser ('outrs, RCS: L.O(;-11.%O(AH)711R1. This report pra.detail. It Is produced' i~hen thf' Action or Failure video twelve. months of Information qunrterly %% hemL~imit Is breeched and Also by special Inquiry using the Action Limit Is braechcd and also by special In-
COPY OVailcible to DTIC doo' notPezznit fulir legible zepizoduction
.. 4 4- 4 4 4 .4 • 4. .. 4 • . .-.4 p . , .
118
qut ry using select•ve rttrh, val routines. Information I) italled use environment. It Is produced when thedisplayed ijicludel currtiit qu.rti'r, prev0ious quarter C',.ýIpljted failure li.ntt tor an Item (F'ederal Stockand 12*.nvnth NITrl)F. ,iptrter to 12 .'inth ratio and. Numbr) is brerched And also by elsecial Iituiry.data groupinlgs by %%lien dlaoue-red, aotiUi t1kt-'l, how The informatintn iitplaletl does net ratlect mainte-•••.malfunctioned and basa location, (Sample Rleport oun•ce required %%hilt instalhled in se weapon or eiluip.
F'ig. 9-14.) mont. It is limnitt,,l to "off" equipment (shop and1, Mabltenance 1N|aII'houn per Flyilni liour hy depot) repalrs. (Sample report F'ig. 0-41.)
Weapon, C•muviaed and %)%frims, liCS: LOtG- a. Maintenance Actionu for Selected FIN Num-* - lbIMO(AIJI),. This report provides 12 lintehlls of hers, RCS: LOG-MM• AIt)1l59. This report pro-
information updcae.d ,juarterly. The daWt elispltyed vidles six months of "oatr eqluipm|ent (shop and depotand the related computations are as indicated in the repair) information on a recoverable Item. Intorn&.-report title. (Sample Report Fig. 9.-IS.) tion displayed includes quantities of maintenance
m. Mainthinability hteli-0l6leiy Summary, ItAS: actions, malfunction modes. and base location. It IsLOG--MI(J(Alt);2.0. This stcwlal inquiry rlpport produced when the computed failure linilt for anprovides 12 months of Infoniiation on Work Unit itent (i'e,deral Stock Number) is breeched and ailsoCodes within an aircraft.. Information disliayed in. by special inquiry.eludes failure, mainitenance action, ahort and man- p. Pats Replaced During Ield or Depot Repair.hour rates as well as the most predominate R.CS: LOG-Pt 0(Ad I)n:9O. rhis report is producedmalfunction modes. (Samplo Report Fig. 9.-16.) on the samne criteria as above displaying aix months
n. Selected Part Number Action Summary, I(CS: of parts rellared during repair of itens identifiedOWG-MMO(AIt)71,R. This report provides 12 in the RCS: LOG-MMO(Alt)7189. Information also
months of infonnation on a recoverable line item of displays quantity and reaso.n for replacement. (Sam-supply (part number worldwide) regardles3 of its pIe report Fig. 9-18.)
p..
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