EGNOS Implementation Framework in Civil Aviation

EGNOS Implementation Framework

in Civil Aviation

10th October 2013

Madrid

TABLE OF CONTENT

• EGNOS SoL Service

• European framework for LPV implementation

• EGNOS Working Agreement

• LPV implementation in non-EU states

MEDUSA WS on LPV implementation 210 Oct 2013

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EGNOS SoL Service

• EGNOS SoL Service Definition Document (SDD)

describing the characteristics and conditions of access to

the service. Published on the 2nd March 2011.

http://www.essp-sas.eu/service_definition_documents

• EGNOS Service Notices generated whenever there is

any complementary information to be provided to users

that could affect the SoL SDD contents.

http://www.essp-sas.eu/service_notices










EGNOS SoL Service Definition Document (I/II)

• The EC published the current EGNOS SoL SDD last 28/06/2013 based

on ESR v2.3.1

• Main SoL objective is to support civil aviation operations down to

LPV (Localizer Performance with Vertical guidance) minima.

• Potential support to SoL applications in any application domain.

Establishes the European Framework for EGNOS SoL Service

implementation in Civil Aviation

• Regulated framework under Supervisory Authority oversight

required for a Safety of Life application.

Ref: EU Civil Aviation application Single European Sky (SES):

– ESSP SAS certified as ANSP (Service Provision common requirements)

– EGNOS System verified (Interoperability regulation)

– Safe introduction of the SoL Service (Safety oversight regulation)

– Need for EGNOS Working Agreements

• Freely offered for all phases of flight to:

– Airspace Users (as defined by SES regulation) equipped with EGNOS

certified receivers (TSOS/ETSOs C144,C145 or C146)

– Certified Air Navigation Service Providers (ANSPs) having signed an

EGNOS Working Agreement (EWA) with ESSP


EGNOS SoL Service Definition Document (II/II)

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The PBN Concept (according to ICAO doc 9613)

• Ground-based NAVAIDS

• Space-based NAVAIDS

Use of the Navigation

Specification and

Navigation Infrastructure

together

NAVAID

INFRASTRUCTURE

NAVIGATION

SPECIFICATION

NAVIGATION

APPLICATION

NAVIGATION

APPLICATION

RNAV x

RNP x

(Refer to next slide)

Applications:

With On-Board

Performance Monitoring

and Alerting


ESSP within the EGNOS Service Provision

Scenario

ESSP

As Air

Navigation

Service

Provider

European

Commission EC-EGNOS

(the customer)

Contract

National Supervisory

Authority

National

Air Traffic

Service

Provider

Certification

Industry Consortium

Maintenance

Service

Notification

Service

10MEDUSA WS on LPV implementation 1010 Oct 2013

CS - ATM Service Provider (ANSP) SES

Certified as ANSP

Standard Procedure Approval Process:

Operational Safety Case completed

Procedure Designed

Procedure Flight Checked, etc.

Specific National Requirements

EUROPEAN FRAMEWORK: WHO DOES WHAT?

SUPERVISORY BODY

EA

SA

Airlines / Operators / final users

Airworthiness/ops app. (AMC-20-27/28, TGL 2/10)

Certified Equipment (ETSOs C144,C145 or C146)

Crew Trained/Qualified, etc.

EGNOS (Nav) Service Provider (ESSP) SESCertified as ANSP SoL Safe introduction

EGNOS DoV produced

Competent

NSA

EGNOS Working Agreement (EWA) between ESSP and ANSP


ESSP/EGNOS EU regulatory related processes

• ESSP SAS certified as ANSP (RE 2096/05 RE 1035/11)

– CONTINUITY WAYVER: EGNOS SiS not fully compliant with

ICAO annex 10 Vol I continuity requirements

In this case the ICAO annex 10 prescribes that: it is still

possible to publish procedures. However, specific

operational mitigations should be put in place to cope with

the reduced continuity expected.

• EGNOS System verified (RE 552/04 Interoperability reg)

• Safe introduction of the SoL Service (RE 1034/11 Safety

oversight reg)

• Need for EGNOS Working Agreements

• EASA responsible body for ESSP related processes

oversight


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The need for the EWA’s

EUROPEAN SES regulatory framework analysis

RE (CE) 550/2004, Article 10: “Air navigation service providers shall

formalise their working relationships by means of written agreements or

equivalent legal arrangements, setting out the specific duties and functions

assumed by each provider and allowing for the exchange of operational

data between all service providers in so far as general air traffic is

concerned. Those arrangements shall be notified to the national

supervisory authority or authorities concerned.”

RE (CE) 2096/2005 Annex I, 7. “An air navigation service provider

which avails itself of services of another air navigation service provider

shall ensure that the agreements cover the allocation of liability between

them.”


EWA Principles

The EWA is a facilitator for EGNOS implementation within the

established European Framework:

- Comply with applicable regulation

- Provide support to ANSPs implementing EGNOS-based

operations

- Formalize the working interfaces between ESSP and ANSPs as

an evidence for the NSA

- Ensure a fair and equitable treatment for all European ANSP

proposing a harmonized approach.


The EWA contents (I/III)

• EWA document: The contractual document containing

contractual liability.

• Annex 1: Including the “ESSP SAS SoL Service Commitment”

as stated in the referenced document EGNOS SoL Service

Definition Document (EGN-SDD SoL v1.0) published on the 2nd

of March 2011.

– A reference to contingency coordination is included as well.

• Annex 2: Including the “Service Arrangements” defined between

the ESSP and the ANSP with the purpose to enable the ANSP to

implement Performance Based Navigation (PBN) procedures

based on EGNOS, namely:

– NOTAM Proposal Origination

– EGNOS Data Recording

– Collaborative Decision Making (CDM)


The EWA contents (II/III)

• EWA main document:

– Roles and responsibilities of the parties: ANSP and ESSP as

established by the applicable regulations and in Annex 1 and 2.

– Respective obligations are free of charge.

– Both parties may terminate the agreement for convenience.

– Only contractual liability: between the signing parties.

– No assignment of the EWA is authorized without the prior written

consent of the other party.


The EWA contents (III/III)

• EWA Annex 2 “Service Arrangements”:

– GNSS Data Recording: to cover the ANSPs requirement in GNSS data

recording and occurrence, incident and accident reporting and

investigations.

– EGNOS NOTAM proposals origination: Service Level 2.0, NOTAM

proposals resulting from:

» GNSS predicted outages generated min. 72 hours in advance

» GNSS unplanned outage handled:

• 2h during working hours.

• 16h00 at maximum, during non-working days (3 checks a day on

GNSS inputs)

– Collaborative Decision Making (CDM) describing ANSP involvement in the

ESSP decision making process (mainly providing recommendations)

decisions that could lead to a relevant impact on the service provided

(contingencies, maintenance activities, new releases deployment, etc.)


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SOME APPLICABLE REFERENCES

• ICAO GNSS MANUAL (AN-Conf/11-IP/14):

3.3.3.12 “A State may obtain SBAS service by either: cooperating with

another State (called the SBAS service provider) that has developed and

deployed an SBAS; or, by developing its own SBAS. A State might choose

the former if its airspace is within the service provider’s coverage area. It

would then have to negotiate an agreement with the SBAS service provider

covering such aspects as the type of service and compensation

arrangements.”

• Accident/Incident investigation:

– ICAO Annex 10. 11 Recording of GNSS parameters

– ICAO GNSS Manual 5.3.5 GNSS Ground recording

• GNSS NOTAMS: ICAO Annex 10 and 15 various refs e.g.: “To determine the effect of a system element failure on service, a

mathematical service volume model is to be used. The State can either

obtain the model from the SBAS operator or develop its own model.”


Successful Experiences with Non-EU

Countries

• Bailiwick of GUERNSEY (Channel Islands): Process followed

1. Negotiation with the EU framework for LPV implementation

agreed

2. Guernsey justified the applicability of SES provisions or equivalent

3. Guernsey airport signed the EWA with ESSP in 2011

4. 2 LPVs already implemented

• SWITZERLAND: Process followed

1. Full set of sectoral agreements concluded with the EU including

transport

2. Switzerland adopted the SES regulation

3. Skyguide (main Swiss ANSP) signed the EWA with ESSP in 2011

4. 4 LPVs already implemented.


Other Interested Non-EU Countries

• NORWAY: Process followed

– EFTA (European Free Trade Agreement) with the EU

– SES regulation full applicability in Norway

– EWA between Avinor (main ANSP) and ESSP about to be

signed

– First LPVs planned in 2014

• UKRAINE: Process followed

– Discussions between Ukraine and the EU on going...

– Civil aviation regulatory equivalence between Ukraine-EU -

PENDING

– No EWA negotiation with ESSP until the appropriate framework

is defined. The EWA will reflect the agreed framework

– EGNOS based operations implementation only once the

previous steps are covered


PROPOSED APPROACH / LESSONS LEARNED

FOR NON EU COUNTRIES

• Agreement at state level (between the non-EU country

and the European Union) required: clarifying the framework

for the use of EGNOS SoL Service (SES applicability, liability

scheme, etc.)

• EWA between ESSP and the ATS provider:

– No EWA discussions/negotiations until the previous

agreement is concluded and ESSP is authorized by EC

– The corresponding EWA will reflect the agreed framework

existing EWA template not necessarily applicable

• EGNOS based ops implementation: Only once the previous

steps are completed


How to Contact ESSP?

ESSP Website: www.essp-sas.eu

EGNOS User Support Website: http://egnos-user-support.essp-sas.eu

EGNOS User Helpdesk:[email protected]

+34 911 236 555 (24/7)

Others:[email protected]


http://www.essp-sas.eu/



http://egnos-user-support.essp-sas.eu/







mailto:[email protected]









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