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U.S. Department of TransportationFederal Aviation AdministrationWashington, D.C.
Master Minimum Equipment List
Revision: ORIGINALDate: 08/25/2011
Boeing
B7478
John N. LaBrowFlight Operations Evaluation Board (FOEB)
Federal Aviation AdministrationFlight Standards Division
AIRCRAFT EVALUATION OFFICE, SEAAEG1601 Lind Ave. S.W.
Renton, Washington 980574056
Telephone: (425) 9176600 Fax: (425) 9176638 FEDERAL AVIATION ADMINISTRATION Page: PAGE I Revision: ORIGINAL MASTER MINIMUM EQUIPMENT LIST Date: 08/25/2011
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(BOEING B7478) Table of Contents SYSTEM PAGES REVISION DATE Title Page ORIGINAL 08/25/2011Table of Contents I ORIGINAL 08/25/2011Highlights of Change II ORIGINAL 08/25/2011Definitions III ORIGINAL 08/25/2011Preamble III ORIGINAL 08/25/201121 Air Conditioning 211 thru 2138 ORIGINAL 08/25/201122 Autoflight 221 thru 227 ORIGINAL 08/25/201123 Communications 231 thru 2311 ORIGINAL 08/25/201124 Electrical Power 241 thru 243 ORIGINAL 08/25/201125 Equipment/Furnishings 251 thru 2512 ORIGINAL 08/25/201126 Fire Protection 261 thru 2611 ORIGINAL 08/25/201127 Flight Controls 271 thru 275 ORIGINAL 08/25/201128 Fuel 281 thru 2815 ORIGINAL 08/25/201129 Hydraulic Power 291 thru 295 ORIGINAL 08/25/201130 Ice and Rain Protection 301 thru 304 ORIGINAL 08/25/201131 Indicating/Recording Systems 311 thru 315 ORIGINAL 08/25/201132 Landing Gear 321 thru 328 ORIGINAL 08/25/201133 Lights 331 thru 335 ORIGINAL 08/25/201134 Navigation 341 thru 3417 ORIGINAL 08/25/201135 Oxygen 351 thru 354 ORIGINAL 08/25/201136 Pneumatic 361 thru 364 ORIGINAL 08/25/201138 Water/Waste 381 thru 382 ORIGINAL 08/25/201145 Central Maintenance System 451 ORIGINAL 08/25/201146 Information Systems 461 thru 463 ORIGINAL 08/25/201147 Inert Gas System 471 ORIGINAL 08/25/201149 Airborne Auxiliary Power 491 ORIGINAL 08/25/201152 Doors 521 thru 527 ORIGINAL 08/25/201173 Engine Fuel and Control 731 thru 732 ORIGINAL 08/25/201174 Ignition 741 ORIGINAL 08/25/201175 Bleed Air 751 ORIGINAL 08/25/201177 Engine Indicating 771 ORIGINAL 08/25/201178 Engine Exhaust 781 ORIGINAL 08/25/201179 Engine Oil 791 ORIGINAL 08/25/201180 Starting 801 ORIGINAL 08/25/2011 FEDERAL AVIATION ADMINISTRATION Page: PAGE II Revision: ORIGINAL MASTER MINIMUM EQUIPMENT LIST Date: 08/25/2011 (BOEING B7478)
Highlights of Change
EFFECTIVE ABOVE DATE, is the original issue of Boeing 7478 Master Minimum Equipment List.
FEDERAL AVIATION ADMINISTRATION Page: PAGE III Revision: ORIGINAL MASTER MINIMUM EQUIPMENT LIST Date: 08/25/2011
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(BOEING B7478)
Definitions
The definitions are as published in FAA Policy Letter 25.
Preamble
The Preamble is as published in FAA Policy Letter 34.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 211
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2101 Occupant Backup
Shutoff Valve (OBSOV)
210101 7478F C 1 0 (M) May be inoperative provided:
a) OBSOV is deactivated closed,b) Packs 1 and 3 operate normally,c) Air cycle machines (ACMs) 1 and 3 operate
normally, andd) Pack temperature control valves (TCVs) 1
and 3 operate normally.
2102 Flow Regulating Shutoff
Valves (FRSOVs)
210201 7478F
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21020101 FRSOV 1 C 1 0 (M) May be inoperative provided:
a) FRSOV 1 is deactivated closed,b) FRSOVs 2 and 3 operate normally, andc) Pack 1 is not used.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 212
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2102 Flow Regulating Shutoff
Valves (FRSOVs)(Cont’d)
210201 7478F (Cont’d) 21020102 FRSOV 2 21020102A C 1 0 (M) May be inoperative provided:
a) FRSOV 2 is deactivated closed,b) FRSOVs 1 and 3 operate normally,c) Pack differential pressure sensor (PDPS) 2
operates normally,d) All packs operate normally,e) All air cycle machines (ACMs) operate
normally,f) All pack temperature control valves (TCVs)
operate normally,g) Forward cargo flow regulating shutoff valve
(CFRSOV) operates normally,h) Aft cargo flow regulating shutoff valve
(CFRSOV) operates normally,i) Both forward cargo overboard exhaust
valves operate normally,
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j) ECS miscellaneous card operates normally,k) ECS freighter card operates normally,l) Both outflow valves operate normally,m) Both aft cargo flapper valves operate
normally,n) APUtoPack Takeoff Supplementary
Procedure is not used, ando) FWD and AFT LOWER LOBE TEMP
selectors remain in AUTO. (Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 213
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2102 Flow Regulating Shutoff
Valves (FRSOVs)(Cont’d)
210201 7478F (Cont’d) 21020102 FRSOV 2 (Cont’d) 21020102B C 1 0 (M) May be inoperative provided:
a) FRSOV 2 is deactivated closed,b) FRSOVs 1 and 3 operate normally, andc) Pack 2 is not used.
(Continued)
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U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 214
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2102 Flow Regulating Shutoff
Valves (FRSOVs)(Cont’d)
210201 7478F (Cont’d) 21020103 FRSOV 3 21020103A C 1 0 (M) May be inoperative provided:
a) FRSOV 3 is deactivated closed,b) FRSOVs 1 and 2 operate normally,c) Pack differential pressure sensor (PDPS) 3
operates normally,d) All packs operate normally,e) All air cycle machines (ACMs) operate
normally,f) All pack temperature control valves (TCVs)
operate normally,g) Forward cargo flow regulating shutoff valve
(CFRSOV) operates normally,h) Both forward cargo overboard exhaust
valves operate normally,i) ECS miscellaneous card operates normally,j) ECS freighter card operates normally,k) Both outflow valves operate normally, andl) FWD LOWER LOBE TEMP selector
remains in AUTO.
21020103B C 1 0 (M) May be inoperative provided:
a) FRSOV 3 is deactivated closed,b) FRSOVs 1 and 2 operate normally, andc) Pack 3 is not used.
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U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 215
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2201 Alternate Ventilation
System (AVS)
220101 7478F C 1 0 (M) May be inoperative provided AVS valve is
deactivated closed.
22010101 ON Light C 1 0 2501 Lower Recirculation Fans C 3 0 (M) May be inoperative deactivated. 2502 Lower Recirculation
Shutoff Valves (RSOVs)C 3 0 (M) May be inoperative locked closed.
2601 Forward Cargo
Overboard ExhaustValves (7478F)
C 2 0 (M) May be inoperative provided:a) Forward cargo overboard exhaust backup
valve is deactivated closed, andb) FWD LOWER LOBE TEMP selector
remains OFF.
2602 Flight Deck Ventilation
Fan (7478F)C 1 0 (M) May be inoperative deactivated.
2603 Lower Cargo Ventilation
FansC 4 0 (M) May be inoperative deactivated.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 216
SYSTEM & 1. 2. NUMBER INSTALLED
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SEQUENCENUMBERS
ITEM 3. NUMBER REQUIRED FOR DISPATCH
4. REMARKS OR EXCEPTIONS21 AIR CONDITIONING
2604 Aft Cargo Flapper Valves 260401 7478F C 2 0 (O) May be inoperative provided:
a) LOWER LOBE AFT CARGO HT selectorremains OFF,
b) AFT LOWER LOBE TEMP selector remainsOFF, and
c) Aft lower cargo compartment remainsempty, except for ballast, empty cargocontainers (ballast may be loaded in ULDs),fly away kits, pallets, and cargo restraintcomponents.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
2605 Environmental Control
System (ECS)Miscellaneous Card
260501 7478F C 1 0 May be inoperative provided:
a) Forward overboard valve is consideredinoperative,
b) Forward cargo heating system is consideredinoperative,
c) One pack is not used,d) LOWER LOBE AFT CARGO HT selector
remains OFF, ande) FWD LOWER LOBE TEMP selector
remains OFF.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 217
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2606 Forward Overboard Valve
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260601 7478F 260601A C 1 0 (M)(O) May be inoperative provided:
a) Forward overboard valve is deactivatedclosed, and
b) Aft lower cargo compartment remainsempty, except for ballast, empty cargocontainers (ballast may be loaded in ULDs),fly away kits, pallets, and cargo restraintcomponents.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
260601B C 1 0 (M)(O) May be inoperative provided:
a) Forward overboard valve is deactivatedopen,
b) Extended overwater flight is prohibited, andc) Main deck and forward lower cargo
compartments remain empty, except forballast, empty cargo containers (ballast maybe loaded in ULDs), fly away kits, pallets,and cargo restraint components.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
2801 Forward Cargo Flow
Regulating Shutoff Valve(CFRSOV) (7478F)
C 1 0 (M) May be inoperative provided:a) Forward CFRSOV is deactivated closed,
andb) FWD LOWER LOBE TEMP selector
remains OFF.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 218
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
2802 Aft Cargo Flow
Regulating Shutoff Valve(CFRSOV)
280201 7478F C 1 0 (M) May be inoperative provided:
a) Aft CFRSOV is deactivated closed, andb) AFT LOWER LOBE TEMP selector remains
OFF.
2803 Environmental Control
System (ECS) FreighterCard (7478F)
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2803A C 1 0 (M) May be inoperative provided:
a) Aft cargo flapper valves are verified openbefore each departure,
b) Flight deck ventilation fan is consideredinoperative,
c) Lower cargo ventilation fans are consideredinoperative, and
d) FWD LOWER LOBE TEMP selectorremains OFF.
2803B C 1 0 May be inoperative provided:
a) Aft cargo flapper valves are consideredinoperative,
b) Flight deck ventilation fan is consideredinoperative,
c) Lower cargo ventilation fans are consideredinoperative, and
d) FWD LOWER LOBE TEMP selectorremains OFF.
2901 Smoke Mode Shutoff
Valve (7478F)C 1 0 (M)(O) May be inoperative provided:
a) Smoke mode shutoff valve is deactivatedclosed, and
b) For crew rest occupied, crew rest door andbunk privacy curtains remain open.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 219
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
3101 Outflow Valves 310101 7478F 310101A C 2 1 (M) One may be inoperative provided:
a) Inoperative outflow valve is deactivatedclosed,
b) Manual cabin pressure control system isverified to operate normally on remainingoutflow valve,
c) Cabin rate of climb indication operatesnormally,
d) Cabin pressure backup sensor systemoperates normally, and
e) One pack is not used.
310101B C 2 0 (M)(O) May be inoperative provided:
a) Both outflow valves are deactivated open,b) Flight is conducted unpressurized,
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c) Extended overwater flight is prohibited,d) Flight must remain within 60 minutes of a
suitable airport, ande) Main deck and forward and aft lower cargo
compartments remain empty, except forballast, empty cargo containers (ballast maybe loaded in ULDs), fly away kits, pallets,and cargo restraint components.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2110
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
3102 Automatic Cabin
Pressure Controllers
3102A C 2 1 (M) One may be inoperative provided:
a) Manual cabin pressure control system isverified to operate normally on eachoperative outflow valve,
b) Cabin rate of climb indication operatesnormally, and
c) Cabin pressure backup sensor systemoperates normally.
3102B C 2 0 May be inoperative provided both outflow valves are
considered inoperative.
3103 Manual Cabin Pressure
Control Systems (MAN LandMAN R)
3103A C 2 1 One may be inoperative provided associated outflow
valve is considered inoperative.
3103B C 2 0 May be inoperative provided both outflow valves are
considered inoperative.
3104 Landing Altitude
(LDG ALT) SwitchC 1 0 (O) Automatic mode may be inoperative provided
alternate procedures are used to set landing altitude.
3201 Positive Pressure Relief C 2 0 May be inoperative provided both outflow valves are
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Valves considered inoperative.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2111
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
3301 Cabin Rate of Climb
Indication
3301A C 1 0 May be inoperative provided:
a) Both outflow valves operate normally, andb) Both automatic cabin pressure controllers
operate normally.
3301B C 1 0 May be inoperative provided both outflow valves are
considered inoperative.
3302 Cabin Differential
Pressure Indication
3302A C 1 0 (O) May be inoperative provided:
a) Cabin altitude indication operates normally,and
b) A chart is provided to convert cabin altitudeto cabin differential pressure.
3302B C 1 0 May be inoperative provided both outflow valves are
considered inoperative.
3303 Cabin Altitude Indication 3303A C 1 0 (O) May be inoperative provided:
a) Cabin differential pressure indicationoperates normally, and
b) A chart is provided to convert cabindifferential pressure to cabin altitude.
3303B C 1 0 May be inoperative provided both outflow valves are
considered inoperative.
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U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2112
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
3304 Outflow Valve Position
Indicators (OverheadPanel)
3304A C 2 1 One may be inoperative provided associated outflow
valve is considered inoperative.
3304B C 2 0 (O) May be inoperative provided alternate procedures
are used to manually move associated outflowvalve.
3305 Cabin Pressure Backup
Sensor SystemC 1 0 May be inoperative provided:
a) Both outflow valves operate normally, andb) Both automatic cabin pressure controllers
operate normally.
4201 Flight Crew Foot Heater
SystemsC 2 0 (M) May be inoperative deactivated.
4202 Flight Crew Shoulder
Heater SystemsC 2 0 (M) May be inoperative deactivated.
4301 Forward Cargo Heating
SystemC 1 0 (M) May be inoperative provided inoperative
supplemental heater is deactivated.
4401 Aft Cargo Heating
System
4401A C 1 0 (M) May be inoperative provided aft cargo heat
shutoff valve is deactivated closed.
4401B C 1 0 (M) May be inoperative provided aft cargo heat
temperature control valve is deactivated closed.
440101 Temperature Control
Switches (Low, High,Overheat)
C 3 0 May be inoperative provided LOWER LOBE AFTCARGO HT selector remains OFF.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT: REVISION NO: ORIGINAL PAGE:
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B7478 DATE: 08/25/2011
2113
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5101 Packs 510101 7478F 51010101 Pack 1 C 1 0 (O) May be inoperative provided:
a) Packs 2 and 3 operate normally,b) Air cycle machines (ACMs) 2 and 3 operate
normally,c) Pack temperature control valves (TCVs) 2
and 3 operate normally,d) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) Pretrim air valve (TAV) 3 operates normally,f) Occupant backup shutoff valve (OBSOV)
operates normally, andg) Right wing isolation valve operates
normally.
51010102 Pack 2 C 1 0 (O) May be inoperative provided:
a) Packs 1 and 3 operate normally,b) Air cycle machines (ACMs) 1 and 3 operate
normally,c) Pack temperature control valves (TCVs) 1
and 3 operate normally, andd) AFT LOWER LOBE TEMP selector remains
OFF.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2114
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
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5101 Packs (Cont’d) 510101 7478F (Cont’d) 51010103 Pack 3 C 1 0 (O) May be inoperative provided:
a) Packs 1 and 2 operate normally,b) Air cycle machines (ACMs) 1 and 2 operate
normally,c) Pack temperature control valves (TCVs) 1
and 2 operate normally,d) Left trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) Pretrim air valve (TAV) 1 operates normally,f) Occupant backup shutoff valve (OBSOV)
operates normally,g) Left wing isolation valve operates normally,
andh) FWD LOWER LOBE TEMP selector
remains OFF.
5102 Pack Flow Control
Valves (FCVs)C 3 2 (M) One may be inoperative provided:
a) Inoperative FCV is locked closed, andb) Associated pack is considered inoperative.
5103 Pack HI FLOW Switch C 1 0
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2115
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5104 Air Cycle Machines
(ACMs)
510401 7478F C 3 2 One may be inoperative provided associated pack is
not used.
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51040101 ACM 1 C 1 0 May be inoperative provided:
a) ACMs 2 and 3 operate normally,b) Ram air inlet door 1 operates normally,c) Ram air exit door 1 operates normally,d) Packs 2 and 3 operate normally,e) Pack temperature control valves (TCVs) 2
and 3 operate normally,f) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally,g) Pretrim air valve (TAV) 3 operates normally,h) Occupant backup shutoff valve (OBSOV)
operates normally, andi) Right wing isolation valve operates
normally.
51040102 ACM 2 C 1 0 May be inoperative provided:
a) ACMs 1 and 3 operate normally,b) Ram air inlet door 2 operates normally,c) Ram air exit door 2 operates normally,d) Packs 1 and 3 operate normally,e) Pack temperature control valves (TCVs) 1
and 3 operate normally, andf) AFT LOWER LOBE TEMP selector remains
OFF.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2116
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5104 Air Cycle Machines
(ACMs) (Cont’d)
510401 7478F (Cont’d) 51040103 ACM 3 C 1 0 May be inoperative provided:
a) ACMs 1 and 2 operate normally,b) Ram air inlet door 3 operates normally,c) Ram air exit door 3 operates normally,d) Packs 1 and 2 operate normally,e) Pack temperature control valves (TCVs) 1
and 2 operate normally,f) Left trim pressure regulating shutoff valve
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(TPRSOV) operates normally,g) Pretrim air valve (TAV) 1 operates normally,h) Occupant backup shutoff valve (OBSOV)
operates normally,i) Left wing isolation valve operates normally,
andj) FWD LOWER LOBE TEMP selector
remains OFF.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2117
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5105 Pack Temperature
Control Valves (TCVs)
510501 7478F C 3 2 One may be inoperative provided associated pack is
not used.
51050101 TCV 1 C 1 0 (M)(O) May be inoperative provided:
a) TCV 1 is deactivated open,b) TCVs 2 and 3 operate normally,c) Ram air inlet door 1 operates normally,d) Ram air exit door 1 operates normally,e) Packs 2 and 3 operate normally,f) Air cycle machines (ACMs) 2 and 3 operate
normally,g) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally,h) Pretrim air valve (TAV) 3 operates normally,i) Occupant backup shutoff valve (OBSOV)
operates normally,j) Right wing isolation valve operates
normally, andk) Alternate procedures are used for pack 1.
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51050102 TCV 2 C 1 0 (M)(O) May be inoperative provided:
a) TCV 2 is deactivated open,b) TCVs 1 and 3 operate normally,c) Ram air inlet door 2 operates normally,d) Ram air exit door 2 operates normally,e) Packs 1 and 3 operate normally,f) Air cycle machines (ACMs) 1 and 3 operate
normally,g) AFT LOWER LOBE TEMP selector remains
OFF, andh) Alternate procedures are used for pack 2.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2118
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5105 Pack Temperature
Control Valves (TCVs)(Cont’d)
510501 7478F (Cont’d) 51050103 TCV 3 C 1 0 (M)(O) May be inoperative provided:
a) TCV 3 is deactivated open,b) TCVs 1 and 2 operate normally,c) Ram air inlet door 3 operates normally,d) Ram air exit door 3 operates normally,e) Packs 1 and 2 operate normally,f) Air cycle machines (ACMs) 1 and 2 operate
normally,g) Left trim pressure regulating shutoff valve
(TPRSOV) operates normally,h) Pretrim air valve (TAV) 1 operates normally,i) Occupant backup shutoff valve (OBSOV)
operates normally,j) Left wing isolation valve operates normally,k) FWD LOWER LOBE TEMP selector
remains OFF, andl) Alternate procedures are used for pack 3.
5106 Pack OFF Lights C 3 0 5107 Pack Temperature
Sensors (PTSs)C 3 2
5108 Mixer Discharge
Temperature SensorsC 3 2 One may be inoperative provided associated pack is
considered inoperative.
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(MDTSs) 5109 Compressor Discharge
Temperature Sensors(CDTSs)
C 3 2 One may be inoperative provided associated pack isconsidered inoperative.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2119
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5110 Pack Inlet Pressure
Sensors (PIPSs)
5110A C 3 2 One may be inoperative provided flow differential
pressure sensors (FDPSs) on remaining operatingpacks operate normally.
5110B C 3 2 One may be inoperative provided associated pack is
not used.
5111 Flow Differential
Pressure Sensors(FDPSs)
5111A C 3 2 One may be inoperative provided pack inlet pressure
sensors (PIPSs) on remaining operating packsoperate normally.
5111B C 3 2 One may be inoperative provided associated pack is
not used.
5112 Pack Differential
Pressure Sensors(PDPSs)
511201 7478F 511201A C 3 2 One may be inoperative provided:
a) Associated flow regulating shutoff valve(FRSOV) operates normally, and
b) Associated lower recirculation fan isconsidered inoperative.
511201B C 3 2 One may be inoperative provided associated pack is
not used.
5113 Pack SYS FAULT Light C 1 0
U.S. DEPARTMENT OF TRANSPORTATION
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MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2120
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5114 Ozone Converters 511401 7478F D 3 0 5801 Equipment Cooling
Control System
580101 NORM Mode C 1 0 May be inoperative provided:
a) EQUIP COOLING selector is set to STBY,and
b) For ground operations above 41 degrees COAT, at least one pack is operated orairplane is supplied with conditioned air.
580102 STBY Mode C 1 0 May be inoperative provided equipment cooling
ground exhaust valve operates normally.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2121
SYSTEM & 1. 2. NUMBER INSTALLED
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SEQUENCENUMBERS
ITEM 3. NUMBER REQUIRED FOR DISPATCH
4. REMARKS OR EXCEPTIONS21 AIR CONDITIONING
5802 Equipment Cooling
Inboard Exhaust Valve
580201 7478F 580201A C 1 0 (M) May be inoperative provided:
a) Inboard exhaust valve is deactivated closed,and
b) One equipment cooling fan is consideredinoperative.
580201B C 1 0 (M)(O) May be inoperative provided:
a) Inboard exhaust valve is deactivated open,b) Equipment cooling supply fan operates
normally,c) Equipment cooling exhaust fan operates
normally,d) Equipment cooling inboard supply valves are
not deactivated closed,e) Equipment cooling barrier filter is not
blocked, andf) Main deck and forward lower cargo
compartments remain empty, except forballast, empty cargo containers (ballast maybe loaded in ULDs), fly away kits, pallets,and cargo restraint components.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2122
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5803 Equipment Cooling
Bypass Valve
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580301 7478F 580301A C 1 0 (M)(O) May be inoperative provided:
a) Bypass valve is deactivated closed,b) Equipment cooling supply fan operates
normally,c) Equipment cooling exhaust fan operates
normally,d) Equipment cooling inboard exhaust valve is
not deactivated closed,e) Equipment cooling inboard supply valves are
not deactivated closed,f) Equipment cooling barrier filter is not
blocked.g) FWD LOWER LOBE TEMP selector
remains OFF, andh) Main deck cargo compartment remains
empty, except for ballast, empty cargocontainers (ballast may be loaded in ULDs),fly away kits, pallets, and cargo restraintcomponents.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2123
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5803 Equipment Cooling
Bypass Valve (Cont’d)
580301 7478F (Cont’d) 580301B C 1 0 (M)(O) May be inoperative provided:
a) Bypass valve is deactivated closed,b) Equipment cooling supply fan operates
normally,
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c) Equipment cooling exhaust fan operatesnormally,
d) Equipment cooling inboard exhaust valve isnot deactivated closed,
e) Equipment cooling inboard supply valves arenot deactivated closed,
f) Equipment cooling barrier filter is notblocked,
g) FWD LOWER LOBE TEMP selectorremains above 50 degrees F (10 degrees C),and
h) Main deck cargo compartment remainsempty, except for ballast, empty cargocontainers (ballast may be loaded in ULDs),fly away kits, pallets, and cargo restraintcomponents.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2124
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5804 Equipment Cooling
Exhaust FanC 1 0 (M) May be inoperative provided:
a) Exhaust fan is deactivated,b) Equipment cooling supply fan operates
normally,c) Equipment cooling bypass valve operates
normally,d) Equipment cooling inboard exhaust valve is
not deactivated open, ande) For ground operations above 29 degrees C
OAT, at least one pack is operated orairplane is supplied with conditioned air.
5805 Equipment Cooling
Inboard Supply Valves
5805A C 2 0 (M) May be inoperative provided:
a) Inoperative inboard supply valve isdeactivated closed, and
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b) One equipment cooling fan is consideredinoperative.
5805B C 2 1 (M) One may be inoperative deactivated open. 5806 Equipment Cooling
Supply FanC 1 0 (M) May be inoperative provided:
a) Supply fan is deactivated,b) Equipment cooling exhaust fan operates
normally,c) Equipment cooling bypass valve operates
normally,d) Equipment cooling inboard exhaust valve is
not deactivated open, ande) For ground operations above 29 degrees C
OAT, at least one pack is operated orairplane is supplied with conditioned air.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2125
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5807 Equipment Cooling
Ground Exhaust ValveC 1 0 (M) May be inoperative provided:
a) Ground exhaust valve is deactivated closed,b) EQUIP COOLING selector is set to STBY,
andc) For ground operations above 41 degrees C
OAT, at least one pack is operated orairplane is supplied with conditioned air.
5808 Equipment Cooling
Barrier Filter
5808A C 1 0 (M) May be removed. 5808B C 1 0 May be blocked provided one equipment cooling fan
is considered inoperative.
5809 Aft Equipment Cooling
Fans (7478F)C 2 1
5810 Equipment Cooling
ThreeWay Valve(7478F)
5810A C 1 0 (M)(O) May be inoperative provided:
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a) Threeway valve is deactivated closed (CBposition), and
b) Main deck cargo compartment remainsempty, except for ballast, empty cargocontainers (ballast may be loaded in ULDs),fly away kits, pallets, and cargo restraintcomponents.
NOTE: Operator MELs must define items which are
approved for inclusion in the fly away kitsand which materials can be used as ballast.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2126
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
5810 Equipment Cooling
ThreeWay Valve(7478F) (Cont’d)
5810B B 1 0 (M) May be inoperative provided:
a) Threeway valve is deactivated open (ABposition), and
b) At least two packs are operatedcontinuously for flight instrument cooling.
6101 Trim Isolation Shutoff
Valve (TSOV)C 1 0 (M) May be inoperative deactivated closed.
6102 Trim Air Pressure
Sensors (TPSs)C 2 0
6103 Trim Pressure Regulating
Shutoff Valves(TPRSOVs)
610301 7478F 61030101 Left TPRSOV C 1 0 (M) May be inoperative provided:
a) Left TPRSOV is deactivated closed,b) Right TPRSOV operates normally,c) Pack 3 operates normally,d) Air cycle machine (ACM) 3 operates
normally,e) Pack temperature control valve (TCV) 3
operates normally, andf) Pretrim air valve (TAV) 3 operates
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normally. (Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2127
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6103 Trim Pressure Regulating
Shutoff Valves(TPRSOVs) (Cont’d)
610301 7478F (Cont’d) 61030102 Right TPRSOV C 1 0 (M) May be inoperative provided:
a) Right TPRSOV is deactivated closed,b) Left TPRSOV operates normally,c) Pack 1 operates normally,d) Air cycle machine (ACM) 1 operates
normally.e) Pack temperature control valve (TCV) 1
operates normally, andf) Pretrim air valve (TAV) 1 operates
normally.
6104 Main Deck Trim Air
Valves (TAVs)
610401 7478F C 2 0 (M) May be inoperative deactivated closed. 61040101 Forward Main Deck TAV C 1 0 May be inoperative provided:
a) Pack 1 operates normally,b) Air cycle machine (ACM) 1 operates
normally,c) Pack temperature control valve (TCV) 1
operates normally,d) Left trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) PreTAV 1 operates normally,f) R TRIM AIR switch remains Off, andg) L TRIM AIR switch remains ON.
(Continued)
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U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2128
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6104 Main Deck Trim Air
Valves (TAVs) (Cont’d)
610401 7478F (Cont’d) 61040102 Aft Main Deck TAV C 1 0 May be inoperative provided:
a) Pack 3 operates normally,b) Air cycle machine (ACM) 3 operates
normally,c) Pack temperature control valve (TCV) 3
operates normally,d) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) PreTAV 3 operates normally,f) L TRIM AIR switch remains Off, andg) R TRIM AIR switch remains ON.
6105 PreTrim Air Valves
(TAVs) (7478F)
610501 PreTAV 1 C 1 0 (M) May be inoperative provided:
a) PreTAV 1 is deactivated closed,b) PreTAV 3 operates normally,c) Pack 3 operates normally,d) Air cycle machine (ACM) 3 operates
normally,e) Pack temperature control valve (TCV) 3
operates normally, andf) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL
PAGE: 2129
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DATE: 08/25/2011
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6105 PreTrim Air Valves
(TAVs) (7478F) (Cont’d)
610502 PreTAV 3 C 1 0 (M) May be inoperative provided:
a) PreTAV 3 is deactivated closed,b) PreTAV 1 operates normally,c) Pack 1 operates normally,d) Air cycle machine (ACM) 1 operates
normally.e) Pack temperature control valve (TCV) 1
operates normally, andf) Left trim pressure regulating shutoff valve
(TPRSOV) operates normally.
6106 Flight Deck Trim Air
Valve (TAV)
610601 7478F 610601A C 1 0 (M) May be inoperative deactivated closed. 610601B C 1 0 May be inoperative provided:
a) Pack 3 operates normally,b) Air cycle machine (ACM) 3 operates
normally,c) Pack temperature control valve (TCV) 3
operates normally,d) Right trim pressure regulating shutoff
valve (TPRSOV) operates normally,e) PreTAV 3 operates normally,f) L TRIM AIR switch remains Off, andg) R TRIM AIR switch remains ON.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2130
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
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6107 Upper Deck Trim AirValve (TAV)
610701 7478F 610701A C 1 0 (M) May be inoperative deactivated closed. 610701B C 1 0 May be inoperative provided:
a) Pack 3 operates normally,b) Air cycle machine (ACM) 3 operates
normally,c) Pack temperature control valve (TCV) 3
operates normally,d) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) PreTAV 3 operates normally,f) L TRIM AIR switch remains Off, andg) R TRIM AIR switch remains ON.
6108 Crew Rest Trim Air
Valve (TAV) (7478F)
6108A C 1 0 (M) May be inoperative deactivated closed. 6108B C 1 0 May be inoperative provided:
a) Pack 3 operates normally,b) Air cycle machine (ACM) 3 operates
normally,c) Pack temperature control valve (TCV) 3
operates normally,d) Right trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) PreTAV 3 operates normally,f) L TRIM AIR switch remains Off, andg) R TRIM AIR switch remains ON.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2131
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6109 Forward Cargo Trim Air
Valve (TAV)(7478F)
6109A C 1 0 (M) May be inoperative deactivated closed.
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6109B C 1 0 May be inoperative provided:a) Pack 1 operates normally,b) Air cycle machine (ACM) 1 operates
normally,c) Pack temperature control valve (TCV) 1
operates normally,d) Left trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) PreTAV 1 operates normally,f) R TRIM AIR switch remains Off, andg) L TRIM AIR switch remains ON.
6110 Aft Cargo Trim Air Valve
(TAV)
611001 7478F 611001A C 1 0 (M) May be inoperative deactivated closed. 611001B C 1 0 May be inoperative provided:
a) Pack 1 operates normally,b) Air cycle machine (ACM) 1 operates
normally,c) Pack temperature control valve (TCV) 1
operates normally,d) Left trim pressure regulating shutoff valve
(TPRSOV) operates normally,e) PreTAV 1 operates normally,f) R TRIM AIR switch remains Off, andg) L TRIM AIR switch remains ON.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2132
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6111 Duct Temperature
Sensors (DTSs)
611101 7478F 61110101 PreTrim DTS C 2 1 One may be inoperative provided associated pretrim
air valve (TAV) is considered inoperative.
61110102 Flight Deck DTS C 1 0 May be inoperative provided:
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a) Flight deck zone temperature sensor (ZTS)operates normally, and
b) Flight deck trim air valve (TAV) isconsidered inoperative.
61110103 Upper Deck DTS C 1 0 May be inoperative provided:
a) Upper deck zone temperature sensor (ZTS)operates normally, and
b) Upper deck trim air valve (TAV) isconsidered inoperative.
61110104 Crew Rest DTS C 1 0 May be inoperative provided:
a) One crew rest zone temperature sensor(ZTS) operates normally, and
b) Crew rest trim air valve (TAV) is consideredinoperative.
61110105 Forward Main Deck DTS C 1 0 May be inoperative provided:
a) One forward main deck zone temperaturesensor (ZTS) operates normally, and
b) Forward main deck trim air valve (TAV) isconsidered inoperative.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2133
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6111 Duct Temperature
Sensors (DTSs) (Cont’d)
611101 7478F (Cont’d) 61110106 Aft Main Deck DTS C 1 0 May be inoperative provided:
a) One aft main deck zone temperature sensor(ZTS) operates normally, and
b) Aft main deck trim air valve (TAV) isconsidered inoperative.
61110107 Forward Cargo DTS 61110107A C 1 0 May be inoperative provided:
a) Forward cargo zone temperature sensor(ZTS) operates normally, and
b) Forward cargo trim air valve (TAV) is
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considered inoperative. 61110107B C 1 0 May be inoperative provided FWD LOWER LOBE
TEMP selector remains OFF.
61110108 Aft Cargo DTS 61110108A C 1 0 May be inoperative provided:
a) Aft cargo zone temperature sensor (ZTS)operates normally, and
b) Aft cargo trim air valve (TAV) is consideredinoperative.
61110108B C 1 0 May be inoperative provided AFT LOWER LOBE
TEMP selector remains OFF.
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2134
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6112 Zone Temperature
Sensors (ZTSs)
611201 7478F 61120101 Flight Deck ZTS C 1 0 May be inoperative provided flight deck duct
temperature sensor (DTS) operates normally.
61120102 Upper Deck ZTS C 1 0 May be inoperative provided upper deck duct
temperature sensor (DTS) operates normally.
61120103 Crew Rest ZTS 61120103A C 2 1 61120103B C 2 0 May be inoperative provided crew rest duct
temperature sensor (DTS) operates normally.
61120104 Forward Main Deck ZTS 61120104A C 2 1
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61120104B C 2 0 May be inoperative provided forward main deck duct
temperature sensor (DTS) operates normally.
(Continued)
U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2135
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6112 Zone Temperature
Sensors (ZTSs) (Cont’d)
611201 7478F (Cont’d) 61120105 Aft Main Deck ZTS 61120105A C 2 1 61120105B C 2 0 May be inoperative provided aft main deck duct
temperature sensor (DTS) operates normally.
61120106 Forward Cargo ZTS 61120106A C 1 0 May be inoperative provided forward cargo duct
temperature sensor (DTS) operates normally.
61120106B C 1 0 May be inoperative provided FWD LOWER LOBE
TEMP selector remains OFF.
61120107 Aft Cargo ZTS 61120107A C 1 0 May be inoperative provided aft cargo duct
temperature sensor (DTS) operates normally.
61120107B C 1 0 May be inoperative provided AFT LOWER LOBE
TEMP selector remains OFF.
6113 Flight Deck Temperature
SelectorC 1 0 (M) AUTO mode may be inoperative provided MAN
control mode is verified to operate normally.
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U.S. DEPARTMENT OF TRANSPORTATION MASTER MINIMUM EQUIPMENT LISTFEDERAL AVIATION ADMINISTRATIONAIRCRAFT:
B7478REVISION NO: ORIGINAL DATE: 08/25/2011
PAGE: 2136
SYSTEM &SEQUENCENUMBERS
ITEM
1. 2. NUMBER INSTALLED 3. NUMBER REQUIRED FOR DISPATCH 4. REMARKS OR EXCEPTIONS
21 AIR CONDITIONING
6114 Cargo Temperature
Selectors
611401 7478F C 4 0 6115 Cabin Temperature
Selector (AttendantPanel)
C 1 0 NOTE: Any function that operates normally maybe used.
6201 Ram Air Door
SystemsC 3 2 (M) One may be inoperative provided:
a) Associated inlet and exit doors aredeactivated closed, and
b) Associated pack is consideredinoperative.
620101 Inlet Doors C 3 2 (M) One may be inoperative provided:
a) Inoperative inlet door is deactivated 7075% closed,
b) Associated exit door operates normally,c) Associated air cycle machine (ACM)
operates normally, andd) Associated pack temperature control valve
(TCV) operates normally.
620102