GM 21.A.21(b), 21.A.95(c),
21.A.97(c), 21.A.115(c), 21.B.103(b), 21.B.107(b) and 21.B.111(b) Approval of
operational suitability data (OSD)
ED
Decision 2019/018/R
It is acknowledged that it may not always be possible to have the OSD available on the date of the issue of the (restricted) type certificate ((R)TC), change approval or supplemental type certificate (STC). The derogation provided by 21.A.21(b), 21.A.95(c), 21.A.97(c), 21.A.115(c), 21.B.103(b), 21.B.107(b) and 21.B.111(b) is intended for that case. The (R)TC, change approval or STC can be issued before compliance with the OSD certification basis has been demonstrated.
However, the OSD needs to be approved before the data is used by a training organisation for the purpose of obtaining a European Union (EU) licence, rating or attestation, or by an EU operator. This is normally done before the entry into service of the first aircraft by an EU operator but it could also be done later for some of the OSD constituents, such as the definition of the scope of validation source data to support the objective qualification of a simulator, which should only be available when a simulator has to be qualified.
The
derogation provided in points 21.A.97(c), 21.A.115(c), 21.B.103(b), 21.B.107(b), and 21.B.111(b) is applicable to all major changes to a TC,
so it is also applicable to minor design changes when triggering a major master
minimum equipment list (MMEL) change, as well as to changes in which at least one
of the OSD constituent changes is major.
EASA aviation regulations allow issuing type certificates before operational suitability data (OSD) approval. However, OSD must be approved before use for EU licenses, ratings, or by EU operators, typically before the first aircraft enters service. This applies to major changes and minor design changes impacting the MMEL.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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