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UPDATE OF CAA CHANGES & PROPOSALS WHICH COULD AFFECT DESIGN DELEGATIONS Peter Gill Airworthiness Engineer Aircraft Certification Unit.

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Presentation on theme: "UPDATE OF CAA CHANGES & PROPOSALS WHICH COULD AFFECT DESIGN DELEGATIONS Peter Gill Airworthiness Engineer Aircraft Certification Unit."— Presentation transcript:

1 UPDATE OF CAA CHANGES & PROPOSALS WHICH COULD AFFECT DESIGN DELEGATIONS Peter Gill Airworthiness Engineer Aircraft Certification Unit

2 Contents  Update to changes proposed at last Delegation Seminar 2007  Delegation Issue Presentation  Review of new STC process

3 Update to 2007 Change Proposals  Major Design Changes – STC’s  As announced at 2007 Seminar  Limitation to prohibit major approvals “that changed data on the TCDS”  Comments requested:  No comments at all – assumed universal agreement

4 Update to 2007 Change Proposals  Major Design Changes – STC’s  Consistency with other authorities and proposed Rule change  Limitation now proposed as “design change which is classified as major”  Comments requested:  Need mechanism to be able to approve “one- off” major changes  Definition of “major” needs revision

5 Update to 2007 Change Proposals  Major Design Changes – STC’s  Limitation now proposed as “prohibit approval of design change which is classified as major without prior agreement of the CAA”.  Agreement will be given promptly and at no cost where:  CAA agrees it is appropriate for a “one-off” approval  Not contrary to CAA policy

6 Update to 2007 Change Proposals  Major Design Changes – STC’s  Areas being looked at before policy can be introduced:  Level at which CAA agreement to approve “one-off” major change is given (needs to be ACU level)  Definition of Major  Have looked at origin of current Rule Part 1 definition  Want to introduce common definition with FAA/EASA  Affects other areas of CAA  Embodied in Rule Part 1 – Not easily changed  Looking at new definition of Major Design Change

7 Design Delegation Issue Presentation  Presentation available, covering:  Purpose of a Design Delegation  Part 21 – Approval of technical data  Legal basis for Design Delegations  Part 146 – Design organisations  Design Delegation issue process

8 Review of New STC Process  AC 21-8 introduced February 2009  Certification Project Plans (PSCP)  Compliance testing  Conformity inspections  Flight Testing  Note: STC applications already existing in February 2009 continue under old process

9 Review of New STC Process  Certification Project Plans (PSCP)  Need to be taken seriously and compiled carefully  Get CAA agreement on Plan  Should fully detail all areas delegated to Design Organisation or other third parties  Should fully detail any areas where the proposed project differs from AC 21-8

10 Review of New STC Process  Certification Project Plans (PSCP) Contd  Specify Certification Basis  Until a Changed Product rule is introduced to Part 21, AC 21-8 recommends using the latest certification basis  If you are not proposing to use the latest Rule you should state why in the PSCP  You can go to earlier amendment states for individual paragraphs where it is impractical to meet the latest requirements.

11 Review of New STC Process  Compliance Testing  Detailed Test Plans  Test Loads  Method of Application of Loads  Measurement of Results (including Instrument Calibration)  Verification of test set-up (Part 146 SOC)  Witnessing of test (authorised by PSCP)

12 Review of New STC Process  Compliance Testing  Conformity inspections  Test article definition  Manufacturing documentation (Form One or equivalent)  Conformity Certification ( signed by LAME for minor and IA for major design changes, or as specified in PSCP)

13 Review of New STC Process  Flight Testing  Specialised type of Compliance Testing  Conformity inspection of Test article  Special-Experimental airworthiness certificate for aircraft  Test Pilot approval of Pilot (AC 19-1)  Detailed Flight Test Plan

14 Any Questions?


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