NPA 2015-12

Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Part-21 for changes to Operational Suitability Data (OSD)
Expiration date for comments
20/10/2015
Extended date for comments
30/10/2015

This Notice of Proposed Amendment (NPA) proposes Acceptable Means of Compliance (AMC) and Guidance Material (GM) to facilitate the implementation of the rules related to the approval of changes to Operational Suitability Data (OSD).

The purpose of the draft AMC/GM presented in this NPA is to reduce the administrative burden on applicants for the approval of a change. The proposed guidance should allow these applicants to come easily to a decision with regard to:

  • whether a design change impacts on OSD or not;
  • the classification of changes to OSD as minor or major;
  • the certification basis for the OSD change;
  • the use of their Design Organisation Approval (DOA) for OSD changes.