AMC2 21.A.263(c)(2) Privileges

ORGANISATIONS THAT DESIGN MINOR CHANGES TO A TYPE CERTIFICATE (TC), AN AUXILIARY POWER UNIT EUROPEAN TECHNICAL STANDARD ODER (APU ETSO) OR A SUPPLEMENTAL TYPE CERTIFICATE (STC) AND MINOR REPAIRS TO PRODUCTS: PROCEDURE FOR THE APPROVAL OF MINOR CHANGES TO A TC, AN APU ETSO OR MINOR REPAIRS

1. Content

The procedure should address the following points:

— compliance documentation;

— approval under the DOA privilege; and

— authorised signatories.

2. Compliance documentation

For those minor changes to a TC, an APU ETSO or to that part of the product covered by an STC, and minor repairs where additional work to demonstrate compliance with the applicable CSs and environmental protection requirements is necessary, compliance documentation should be established and independently verified as required by point 21.A.239(d)(2).

The procedure should describe how the compliance documentation is produced and checked. For compliance documentation, see also AMC 21.A.20(c).

3. Approval under the DOA privilege

3.1. For those minor changes to a TC, an APU ETSO or to that part of the product covered by an STC, and minor repairs where additional work to demonstrate compliance with the applicable CSs or environmental protection requirements is necessary, the procedure should define a document to formalise the approval under the DOA privilege.

This document should include at least:

(a) a brief description of the change or the repair and the reason for change or repair;

(b) identification of the initial configuration of the affected area and other items (which determines the eligibility for installation of the change or repair into an aircraft);

(c) identification of the final configuration of the affected area, and of supplements to manuals and to OSD constituents;

(d) the applicable CSs or environmental protection requirements and methods of compliance;

(e) references to the compliance documents;

(f) the effects, if any, on the limitations and on the approved documentation;

(g) evidence of the independent checking function of the demonstration of compliance;

(h) evidence of the approval under the privilege of point 21.A.263(c)(2) by an authorised signatory; and

(i) the date of the approval.

For repairs, see also AMC 21.A.433(b) and 21.A.447.

3.2. For the other minor changes to a TC, APU ETSO or to that part of the product covered by an STC, and minor repairs, the procedure should define a means to identify the change or repair and the reasons for the change or repair, and to formalise its approval by the appropriate engineering authority under an authorised signatory. This function should be controlled through appropriate procedures of the DOA holder’s design assurance system.

4. Authorised signatories

The persons authorised to sign for the approval under the privilege of 21.A.263(c)(2) should be identified (name, signature and scope of authority) in appropriate documents that may be linked to the handbook.