GM 21.A.14(b) Eligibility for alternative procedures

Design organisations approved under Part 21 Section A Subpart J (‘Subpart J DOA’) should be the normal approach for type certification, supplemental type certification, approval of major changes to type design or approval of major repair design, except when agreed otherwise by the CAA in accordance with 21.A.14, 21.A.112B and 21.A.432B.

The acceptance of alternative procedures, as defined in AMC 21.A.14(b), should be limited where the CAA finds it more appropriate for the conduct of type certification, supplemental type certification, approval of changes to type design, approval of repair design.