IATA Aircraft Lease Guidance

Guidance Material and Best Practices for Aircraft Leases
Figure 11.
Schematic overview of AMP contents
Following Maintenance Steering Group-3 (MSG3) philosophy, an aircraft reliability program should be
established to ensure the AMP tasks are effective and their interval is adequate. As a result of the reliability
program, the AMP may contain task escalations or deletions in comparison with the MPD. MSG3 no longer
assumes all parts of the aircraft to be on a hard-time interval for overhaul, but rather the philosophy is
designed around reliability trending and historical information. With MSG3, the traditional letter A, B, C and
D-checks have mostly been replaced by check packages which are specific and tailored to the maintenance
status and utilization of the aircraft. As such, operators can get more operational time out of their aircraft than
before, and thus operate more economically. More and more operators are taking this one step further by
eliminating or reducing (the amount of) larger checks, breaking the larger check packages into smaller pieces
which are performed in the line maintenance environment or during night stops. These phase or equalized
check programs further reduce the out-of-service time of the aircraft and thus improve utilization and
revenue for the operator.
Due to the customizability, operator AMPs differ in content and form, but will always contain several
mandatory sub-sections that are specifically of interest during an aircraft transfer or redelivery. The question
arises what should be presented during a redelivery with regards to the maintenance program and
compliance files; this annex aims to provide guidance on this subject by dealing with each sub-section
(paragraph 3).
102 4 th Edition 2017