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European Aviation Safety Agency. Datalink Approval Process. Overview. Airworthiness Approval Application to EASA, handled by NAA Operational Approval Through National Authorities Status of the regulatory material IR 21, CS-25, NPAs NPA Status and planned availability

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european aviation safety agency

European Aviation Safety Agency

Datalink Approval Process

  • Airworthiness Approval
    • Application to EASA, handled by NAA
  • Operational Approval
    • Through National Authorities
  • Status of the regulatory material
    • IR 21, CS-25, NPAs
      • NPA Status and planned availability
        • JAA NPA 20-7: Departure clearance over ACARS
        • JAA NPA 20-11c: Initial services for Air-Ground Data-link in continental airspace
        • JAA NPA 20-13a: ATIS over ACARS
        • Note:these are called JAA NPAs because they started and were consulted under JAA. EASA will re-circulate them as EASA NPA
airworthiness approval
Airworthiness Approval
  • Application for approval to EASA
  • EASA will then allocate to:
    • EASA Certification Team (European Product) or Validation Team (Foreign Product) or
    • Lead Authority (NAA responsible for the a/c type manufactured outside EU) or
    • Local NAA where application is made
airworthiness approval4
Airworthiness Approval
  • The Applicant will present a Compliance Checklist, addressing:
      • General CS-25 requirements (e.g. 25.1301, 25.1309, equipment qualification)
      • Specific Data Link regulatory material
      • Test plans (e.g. ground tests)
      • Non-interference with essential systems
      • Similarity with equivalent approvals where applicable
  • Aircraft Flight Manual (AFM) procedures and limitations where applicable
airworthiness approval5
Airworthiness Approval
  • Note: Specific regulatory material on Data Link applications currently exists in the form of JAA Notices of Proposed Amendment (NPAs)
  • These JAA NPAs contain Acceptable Means of Compliance with Airworthiness and Operational Considerations.
airworthiness approval6
Airworthiness Approval


Airworthiness considerations of JAA NPA 20-11:

  • Qualification criteria requiring coordination is provided in EUROCAE Document ED-78A.
  • The installation must be shown to meet the safety and performance requirements allocated to the aircraft as provided in SPR ED-120, and the applicable interoperability requirements INTEROP ED-110A.
  • The VDL mode 2 system should be compliant with ED-92A.
  • The airborne ATN router should be compliant with an ATN MOPS acceptable to the certification authority. In the absence of a published generic MOPS, the applicant may propose alternative minimum performance criteria for which interoperability and testability can be demonstrated.
airworthiness approval7
Airworthiness Approval
  • Recording of ATS messages for accident investigation will need to be implemented when required by JAR OPS 1 or 3, or by national regulation. It is not intended that aircraft which have received airworthiness approval in compliance with interoperability requirement ED-110 should be reinvestigated.
  • For EUROCAE Documents (EDs) see
airworthiness approval8
Airworthiness Approval


  • Human-Machine Interface Evaluation addressing:
    • Compatibility with flight deck philosophy
    • Flight deck annunciations (aural and visual)
    • Flight deck controls
    • Flight deck displays
airworthiness approval9
Airworthiness Approval
  • Certification Review Items (CRIs) can be used to:
    • Document the Certification Basis
    • Apply Special Conditions for airworthiness criteria not covered by CS-25 (e.g. proposed NPA material not yet implemented in CS-25)
    • Apply Equivalent Safety Findings
    • Apply Acceptable Means of Compliance or Interpretative Material
airworthiness approval10
Airworthiness Approval
  • A CRI can be proposed by the EASA Team or by the Applicant
  • CRIs will be coordinated with EASA (Certification and Rulemaking Directorates) to ensure consistency between projects
operational approval
Operational Approval
  • The JAA NPAs contain Operational Considerations addressing:
    • Safety aspects
    • Operations Manual and Training
    • Incident reporting
  • The operational approval will be handled by the operations department of National Authorities
regulatory material
Regulatory Material
  • Implementing Rules, Part 21
    • Certification of aircraft and related products, parts and appliances, available via
  • CS-25
    • Certification Specifications for Large Aeroplanes, available via
  • JAA NPAs 20-7, 20-11c and 20-13a are currently under review
    • NPA 20-7: Approval of Departure Clearance via Data Communications over ACARS
    • NPA 20-11c: Advisory Material for the Approval of use of Initial Services for Air-Ground Data Link in Continental Airspace
    • NPA 20-13a: Digital ATIS via Data Link over ACARS
regulatory material14
Regulatory Material
  • Planned availability for EASA NPAs:
    • Will need to be re-circulated as EASA NPA:
      • Are not yet incorporated into EASA AMC-20 (acceptable means of compliance affecting more than one EASA text)
      • The version circulated by EASA will have own EASA number (TBD) and will take into account comments received during JAA consultation
    • Schedule for the 3:
      • EASA NPA to be published by end of the first quarter 2005
      • Adoption by EASA (Executive Director’s decision) by end of fourth quarter 2005
    • These NPAs will have to be coordinated with JAA
Thank you for your attention

Comments and questions are welcome

Attachment 1 provide more general information on EASA

contents of the presentation
Contents of the presentation
  • Brief presentation of the European Aviation Safety Agency (EASA):
    • Remit; Objectives; Organization; Rules and procedures; Rulemaking
  • EASA: some recent developments
  • Conclusions
easa remit
EASA: Remit
  • Its Remit:
    • Currently the Regulation 1592/2002 establishes Community competency only for the regulation of the airworthiness and environmental compatibility of products
    • Work is being done to extend the scope of this regulation to air operations and flight crew licensing
    • Ultimately it could also cover the safety regulation of airport operations and air traffic control services
easa objectives
EASA: objectives
  • Its objectives:
    • To establish and maintain high uniform levels of civil aviation safety in Europe
    • To fulfill the ambition and intent of a Total Systems Approach to aviation safety
      • Improved procedures
      • Focused approach
      • Cost-efficient environment
    • Implement a Quality Management System
easa legal changes
EASA: legal changes

Changes in the legal framework led to sharing of roles

  • Airworthiness/Environment Standards Certificates
    • Type Certificate Agency/EC Agency
    • Design Organisation Approval Agency/EC Agency
    • Other individual certificates Agency/EC NAA
  • Maintenance
    • Non EU Country Agency/EC Agency
    • EU Country Agency/EC NAA
easa organization
EASA: Organization
  • Organization
    • Agency organized around its 3 main functions (See slide 22)
      • Rulemaking
      • Certification
      • Standardization and Quality
    • Committee, Management Board and Advisory Bodies:
      • EASA Committee: regulatory; safeguard and advisory
      • Management Board and Advisory Bodies (See slide 23)
easa organisation
EASA organisation



Member State

Member State

Member State

Member State


European Commission


Management Board

Board(s) of Appeal

Advisory Body of Interested Parties

Panel of Experts

Executive Director

Third Countries

Safety Standards Consultative Committee

Advisory Group of National Authorities

easa rules and procedures
EASA: Rules and procedures
  • Rules and procedures:
    • Regulatory texts relative to initial and continued airworthiness:
      • Full set of regulatory texts is available (See slide 25 and 26)
    • Rulemaking process is adopted:
      • See slide 27
    • Certification procedures are available:
      • Products
      • Organizations
      • Guidelines for outsourcing
easa rulemaking
EASA : Rulemaking
  • Status of EASA texts
    • Applicability; basic principles and essential requirements:
      • Binding; adopted by the legislator under co-decision; included in Regulation
    • Implementing Rules:
      • Binding; will be adopted by the Commission under Comitology process following an Opinion from the Agency
    • Certification Specification, guidance:
      • Generally not binding but may be binding on individual application; adopted by the Agency
    • Working methods of the Agency:
      • Binding for the Agency; adopted by the Management Board
easa rulemaking27
EASA: Rulemaking
  • Rulemaking procedure adopted in 2003 by the Management Board
  • Highlights
    • Programming assisted by two advisory bodies :
      • Annual Rulemaking program
      • Advance rulemaking planning on 3 years
    • Notice of Proposed Amendments (NPA)
    • Drafting/review of comments by the Agency or Working Groups (WG)
    • Regulatory Impact Assessment (RIA)
  • Complementary procedures adopted by the Executive Director (e.g. RIA; composition of WG)
easa some developments
EASA: some developments
  • Recent developments (I):
    • Location and Staffing:
      • Seat is Cologne since 03 November 2004
      • 100 people end of 2004; 200 end of 2005
    • Fees and Charges:
      • To be adopted by April 2005
      • Link with contracts with National Authorities
    • Opinion relative to Operation, Licensing and third Countries Aircraft:
      • Sent to the Commission on 16 December
easa some developments29
EASA: some developments
  • Some developments (II)
    • Relations with USA:
      • Good progress on Bilateral with the USA
      • FAA assessment visit late January 26 to February 2
    • Transition JAA to EASA:
      • Standardization on initial and continued airworthiness managed by EASA for EU and non-EU JAA countries
      • Joint Operation Evaluation Boards and Maintenance Review Boards managed by EASA.
      • JAA CNS/ATM Steering Group goes on with participation of EASA.
easa some developments30
EASA: some developments
  • Some developments (III)
    • Opinion on Data-bases providers:
      • Adopted on January 14
      • Not POA but letter of acceptance issued following finding of conformity with guidelines.
      • EASA provides a service: it is not mandatory !
    • Relationship with other organizations:
      • DG-TREN to organize coordination meeting with EUROCONTROL; JAA; GASR and EASA as soon as possible.
      • Meeting at working level with ETSI on December 8
  • The Agency is operational, growing in strength and expanding its scope
  • The Agency is built on a strong legal basis which provides certainty to stakeholders
  • The Agency is the principal civil aviation authority in Europe, with clearly established lines of roles, tasks and responsibilities
  • Relationships with other countries are key to ensure the highest level of safety worldwide
  • The Agency in the European interlocutor for civil aviation safety