IATA Aircraft Lease Guidance

Guidance Material and Best Practices for Aircraft Leases
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A JAA Form 1 issued prior to 28 September 2005 by a production organization approved by a competent
authority in accordance with its national regulations
A JAA Form One issued prior to 28 September 2008 by a maintenance organization approved by a
competent authority in accordance with its national regulations
The EASA makes use of the term ‘service life-limited components’ which are components subject to a
certified life limit after which the components should be retired (LLP, see Annex X), and components subject
to a service life limit 21 after which the components should undergo maintenance to restore their serviceability
(HT components). M.A.305(d) describes the record system required for HT components for which the current
status should be monitored, indicating the component service limit, hours, cycles, or calendar time since the
component has been restored back to its service life, and it should indicate the remaining life (hours, cycles,
calendar time) before the components need to undergo maintenance.
Section M.A.305 (paragraph h) lists that the owner/operator should keep all detailed maintenance records for
a period of at least 36 months, meaning the EASA Form 1 should be retained for a minimum period of 36
months. For service life limited components, historical records are required to be retained until the
information contained in such records is suspended. Aircraft owners very often have different and more
stringent requirements.
It is allowed to generate the EASA Form 1 from a computer database, and as such a paper version of the
certificate is not a necessity.
Used aircraft components removed from an aircraft involved in an accident or incident require all necessary
tests and inspections, which may require input from the TC holder. The relevant WO to get the component in
airworthy condition should be mentioned in block 12 of the release certificate. However, aircraft owners
usually restrict the installation of components which were involved in accidents or incidents.
2.2 FAA Procedures
The FAA regulations are similar to EASA’s, and due to bilateral agreements it is possible to create a dual
release, meaning one certificate indicating both FAA and EASA standards in which the EASA approval
certificate number is indicated in block 13 of the FAA Form 8130-3. For EASA Form 1, the dual release is
indicated in block 13 and 19. Both authorities unconditionally accept each other’s certificates if the
components are newly manufactured.
To certify that the component has been manufactured and maintained in accordance with its TC, the FAA has
two acceptable ways to identify replacement parts once suitable to fit on the aircraft. The first is the Form
8130-3, Airworthiness Approval Tag, suitable as both approval for a part’s return to service after maintenance
or alteration by an authorized part 145 repair station, and as export approval and conformity destination from
production approval holders. Secondly it is possible to use foreign manufactured parts when there is a
Bilateral Airworthiness Agreement (BAA) in place with the country of manufacture. The procedures and the
countries with which the US has BAAs, and the conditions of these agreements, are contained in AC 21-23.
21
EASA NPA 2014-04 changes the terminology to time controlled components
116 4 th Edition 2017