Page 115 - UK Regulation Part 21 Initial Airworthiness Annex I (consolidated) March 2022

PART 21 - INITIAL AIRWORTHINESS (ANNEX I)

applicant for, or the holder of, a type design, in order to record their respective responsibilities.

21.A.133(c) AMC2-ELA Eligibility – Link between design and production
If the approval is held or is applied for by a different entity, and the work is not performed by one
consolidated team, an arrangement in accordance with AMC-ELA No 1 to 21.A.133(c) is not sufficient.
The roles and responsibilities for the coordination between the design and production staff (in both
directions) need to be established. This may be achieved, for example, by simple flow chart
definitions supported by strong, self-explanatory forms, or by task descriptions of responsible
functions in the organisation, or by equivalent means. IT-based enterprise resource planning (ERP)
systems can be used to ensure and to demonstrate that there is a correct flow of information on the
basis of defined and visible workflows with assigned roles and release gates, without any further need
for written definitions. Further means with a comparable effect are possible. Internal and external
audits can verify that the coordination functions properly.
21.A.134 Application
Each application for a production organisation approval shall be made to the CAA in a form and
manner established by that authority, and shall include an outline of the information required by point
21.A.143 and the terms of approval requested to be issued under point 21.A.151.
21.A.134 GM Application – Application form and manner
CAA Form 50 (see AMC 21.B.220(c)) should be obtained from the CAA, and completed by the
accountable manager of the organisation.
The completed form, an outline of the production organisation exposition, and details of the proposed
terms of approval are to be forwarded to the CAA.
21.A.134 GM1-ELA Scope – Application
GM 21.A.134 applies.
21.A.135 Issue of production organisation approval
An organisation shall be entitled to have a production organisation approval issued by the CAA when it
has demonstrated compliance with the applicable requirements under this Subpart.
21.A.139 Quality System
(a) The production organisation shall demonstrate that it has established and is able to
maintain a quality system. The quality system shall be documented. This quality system
shall be such as to enable the organisation to ensure that each product, part or appliance
produced by the organisation or by its partners, or supplied from or subcontracted to
outside parties, conforms to the applicable design data and is in condition for safe
operation, and thus exercise the privileges set forth in point 21.A.163.
(b) The quality system shall contain:
1. as applicable within the scope of approval, control procedures for:
(i) document issue, approval, or change;
(ii) vendor and subcontractor assessment audit and control;
(iii) verification that incoming products, parts, materials, and equipment, including
items supplied new or used by buyers of products, are as specified in the
applicable design data;
(iv) identification and traceability;
(v) manufacturing processes;
(vi) inspection and testing, including production flight tests;
(vii) calibration of tools, jigs, and test equipment;
(viii) non conforming item control;
(ix) airworthiness coordination with the applicant for, or holder of, the design
approval;
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