UPDATE OF CAA CHANGESUPDATE OF CAA CHANGES& PROPOSALS& PROPOSALS

WHICH COULD AFFECTWHICH COULD AFFECTDESIGN DELEGATIONSDESIGN DELEGATIONS

Peter GillPeter GillAirworthiness EngineerAirworthiness Engineer

Aircraft Certification UnitAircraft Certification Unit

ContentsContents

Update to changes proposed at last Delegation Seminar 2007

Delegation Issue Presentation

Review of new STC process

Update to 2007 Change ProposalsUpdate 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

Update to 2007 Change ProposalsUpdate 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

Update to 2007 Change ProposalsUpdate 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”

approvalNot contrary to CAA policy

Update to 2007 Change ProposalsUpdate 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

Design Delegation Issue Design Delegation Issue PresentationPresentation

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

Review of New STC ProcessReview 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

Review of New STC ProcessReview 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

Review of New STC ProcessReview 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.

Review of New STC ProcessReview of New STC Process

Compliance Testing Detailed Test Plans

Test LoadsMethod of Application of LoadsMeasurement of Results (including Instrument

Calibration)Verification of test set-up (Part 146 SOC)Witnessing of test (authorised by PSCP)

Review of New STC ProcessReview of New STC Process

Compliance Testing Conformity inspections

Test article definitionManufacturing documentation (Form One or

equivalent)Conformity Certification (8130-9 signed by

LAME for minor and IA for major design changes, or as specified in PSCP)

Review of New STC ProcessReview 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

Any Questions?