What does 'changes to the type certificate' refer to in Part 21 Subpart D and E?

The term 'changes to the type certificate' refers to the elements of the TC as defined in 21.A.41, not merely the document reflecting the TC. It includes changes to the type design, operating limitations, TCDS, certification basis, conditions/limitations, OSD certification basis, OSD and the TCDS for noise.

GM 21.A.90A Scope

Q: According to GM 21.A.90A, what changes may require approval under Part 21 Subparts D and E?

The processes for the approval of changes described in Part 21 Subparts D and E apply not only to changes to the type design but also to changes to the operating limitations, the type certificate data sheet (TCDS) for airworthiness and emissions, the applicable type-certification basis and environmental protection requirements, any other conditions or limitations prescribed for the product by EASA, the applicable operational suitability data (OSD) certification basis, the OSD, and the TCDS for noise.

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GM 21.A.90A Scope

ED Decision 2019/018/R

The term ‘changes to the type certificate’ is consistently used in Part 21 Subpart D and E, as well as in the related AMC and GM. This term does not refer to changing the document that reflects the type certificate (TC) but to the elements of the TC as defined in 21.A.41. It means that the processes for the approval of changes, as described in the said two Subparts, do not only apply to changes to the type design, but may also apply to changes to:

— the operating limitations;

— the type certificate data sheet (TCDS) for airworthiness and emissions;

— the applicable type-certification basis and environmental protection requirements with which the applicant has to demonstrate compliance;

— any other conditions or limitations prescribed for the product by EASA;

— the applicable operational suitability data (OSD) certification basis;

— the OSD; and

— the TCDS for noise.

NOTE: OSD is only applicable to aircraft TCs and not to engine or propeller TCs. Therefore, changes to OSD are only relevant for changes to aircraft TCs.

Details

Source-Title: GM 21.A.90A Scope

Erulesid: ERULES-1963177438-3707 Compare versions

Domain: Initial airworthiness

Applicabilitydate: 30 August, 2019

Entryintoforcedate: 30 August, 2019

Regulatorysource: ED Decision 2019/018/R Navigate

Regulatorysubject: Part-21

Typeofcontent: GM to IR (Guidance material to implementing rule)

Parentir: 21.A.90A Scope

Origin: EASA

Category: EAR