Which tasks of the aircraft maintenance programme (AMP) could be the subject to deletion or interval extension by a CAMO using the indirect approval procedures?
The indirect approval procedures may only be used for:
- the tasks, prescribed by the Design Approval Holder (DAH) in accordance with Part-21. The interval of these tasks could be decreased by the CAMO and extended to the values prescribed by the DAH,
- CAMO originated tasks which could be added, deleted or extended,
- addition/deletion/interval extension for the tasks arising from recommendations issued by the DAH.
In any case, such processes still should be based on the M.A.301(4) analysis of the effectiveness of the AMP.