Repair Categories & Aircraft AMP

During a review of an aircraft lease return it is important to consider the structural repairs. A part of this review will consider the category of a repair and possible impact on the AMP (Approved Maintenance Programme); we can see repair categories below for an example:

Category A
Permanent Repair. The re inspection for this repair is covered in line with the inspection intervals as per the AMP (Approved Maintenance Programme) and need no reduced inspection intervals.

Category B
Permanent Repair. The re inspection for this repair is reduced and so attracts additional inspections to be incorporated into the AMP (Approved Maintenance Programme) in order to remain in a compliant condition for Airworthiness.

Category C
Temporary Repair. This repair is not permanent and will require a permanent repair to be completed within a certain period as defined by the authorisation approving the repair. It is worth noting that the temporary repair may also attract reduced inspection intervals or additional inspections to remain in a compliant condition for Airworthiness.

This is an important part of the structural review as a reduced interval inspection Category B would typically form a part of the aircraft AMP, where Category A has no requirement to do so.

During a lease return, normally temporary repairs (Category C) are not accepted – typically these are short term solutions.

The AMP should incorporate the reduced interval / additional requirements for repairs dependent on their category and ICA (Instructions for Continued Airworthiness) and you should look to check this is the case.

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