IATA Aircraft Lease Guidance

Guidance Material and Best Practices for Aircraft Leases
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Basis for the components listed on the summary file is the serialized components list as provided by the
manufacturer at delivery. Once one of these components is replaced, it is required to update the
summary sheet. The summary list should contain the following information:
o
o
o
o
o
o
ATA Chapter
P/N and S/N
Position of the installed component
Installation date, aircraft FHs, and FCs at installation date
Reference to installed aircraft
Reference to component certificate
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The compliance data should provide the component release certificates in the same order as provided on
the summary sheet. Once a component is replaced, the certificate of the previously installed component
gets replaced with the certificate of the newly installed component.
Not all lease agreements mandate retention of compliance data, and in those cases the summary file will be
sufficient.
3.2 Hard Time Component File
The HT component file should list all components which have a maintenance requirement as listed in the
AMP, meaning not only the components with a scheduled overhaul interval but also components which
require a different maintenance action, such as weighing or calibration. Similar to the on condition
component file, there are two sections, a summary file and the compliance data:
●
The summary list should contain the following information:
o
o
o
o
o
o
ATA Chapter
P/N and S/N
Position of the installed component
Date of the last maintenance action as mentioned on the release certificate
Reference to installed aircraft
Reference to component certificate
●
The compliance data should provide the component release certificates or the maintenance action in the
same order as provided on the summary sheet. Once a component is replaced, the certificate of the
previously installed component gets replaced with the certificate of the newly installed component.
3.3 Pitfalls
Components are often replaced during line maintenance in AOG situations on outstations. Consequently it
may be difficult to trace the certificates for these components, as the records division may not be updated
with these replacements. Similar issues occur when components are swapped between aircraft for trouble
shooting purposes and no new certificate is issued, or the previous repair release is not swapped in the file.
118 4 th Edition 2017