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Navigate / EASA / INITIAL AIRWORTHINESS AND ENVIRONMENTAL PROTECTION NOV 2025 / Annex Ib / SECTION A - TECHNICAL REQUIREMENTS / SUBPART F -- CHANGES TO AIRCRAFT FOR WHICH DESIGN COMPLIANCE HAS BEEN DECLARED / 21L.A.108 Compliance activities for declaring compliance of a major change /

AMC1 21L.A.108(b) Compliance activities for declaring compliance of a major change

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AMC1 21L.A.108(b) Compliance activities for declaring compliance of a major change

ED Decision 2023/013/R

COMPLIANCE DOCUMENTATION

(a) Compliance documentation comprises one or more test or inspection programmes/plans, reports, drawings, design data, specifications, calculations, analyses, etc., and provides a record of the means by which compliance with the applicable detailed technical specifications and environmental protection requirements has been demonstrated.

(b) Each compliance document should typically contain:

— the reference of the detailed technical specifications or environmental protection requirements addressed by the document;

— substantiation data demonstrating compliance (except test or inspection programmes/plans);

— a statement by the declarant declaring that the document provides the proof of compliance for which it has been created; and

— the declarant’s signature.

(c) Each compliance document should be unequivocally identified by its reference and issue date. The various issues of a document should be controlled and comply with point 21L.A.7.

Frequently Asked Questions

Compliance documentation comprises one or more test or inspection programmes/plans, reports, drawings, design data, specifications, calculations, analyses, etc., and provides a record of the means by which compliance with the applicable detailed technical specifications and environmental protection requirements has been demonstrated.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

Each compliance document should typically contain: the reference of the detailed technical specifications or environmental protection requirements addressed by the document; substantiation data demonstrating compliance (except test or inspection programmes/plans); a statement by the declarant declaring that the document provides the proof of compliance for which it has been created; and the declarant's signature.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

Test or inspection programmes/plans are excluded from the requirement to include substantiation data demonstrating compliance.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

Each compliance document should be unequivocally identified by its reference and issue date. The various issues of a document should be controlled and comply with point 21L.A.7.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

The regulatory basis is ED Decision 2023/013/R.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

Yes, each compliance document should include a statement by the declarant declaring that the document provides the proof of compliance for which it has been created.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

The purpose is to provide a record of the means by which compliance with the applicable detailed technical specifications and environmental protection requirements has been demonstrated.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

No, test or inspection programmes/plans are excepted from the requirement to contain substantiation data demonstrating compliance.

* Aviation.Bot's Suggestion - Always consult the original regulation for confirmation

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