Page 111 - UK Regulation Part 21 Initial Airworthiness Annex I (consolidated) March 2022

PART 21 - INITIAL AIRWORTHINESS (ANNEX I)

complies with the CO2 emissions applicability requirements of Annex 16 to the Chicago
Convention, Volume III, Part II, Chapter 2, paragraph 2.1.1.
It should be noted that the CAA has the possibility to grant exemptions as noted in Volume
III, Part II, Chapter 1, paragraph 1.11 and Chapter 2, paragraph 2.1.3.
21.A.130(c) AMC Validation of the Statement of Conformity
It is the responsibility of the applicant to ensure that each and every product, part and appliance
conforms to the applicable design data and is in condition for safe operation before issuing and
signing the relevant statement of conformity. During manufacture, the applicant is expected to use
such facilities, systems, processes and procedures as are described in the Manual and have been
previously agreed with the CAA.
The CAA must then make such inspection and investigation of records and product, part or appliance
as are necessary to determine that the agreed facilities, systems, processes and procedures have
been used, and that the statement of conformity may be regarded as a valid document.
To enable timely inspection and investigation by the CAA, the statement of conformity must be
prepared and submitted to the CAA immediately upon satisfactory completion of final production
inspection and test.
21.A.130(c)(1) AMC Initial transfer of ownership
Upon transfer of ownership:
a) For a complete aircraft, whether or not an application for a certificate of airworthiness is to
be made, the CAA Form 52 must be completed and submitted to the CAA for validation.
b) For anything other than a complete aircraft an CAA Form 52 is inappropriate, and the CAA
Form 1 must be completed and submitted to the CAA for validation.
NOTE: If there is any significant delay between the last production task and presentation of the CAA
Form 52 or CAA Form 1 to the CAA, then additional evidence relating to the storage, preservation and
maintenance of the item since its production must be presented to the CAA.
Section A Subpart G PRODUCTION ORGANISATION APPROVAL

Reference Description
21.A.131 Scope
This Subpart establishes:
(a) the procedure for the issuance of a production organisation approval for a production
organisation showing conformity of products, parts and appliances with the applicable
design data;
(b) the rules governing the rights and obligations of the applicant for, and holders of, such
approvals.
21.A.131 AMC1-ELA Scope
The AMC-ELA in this Subpart provide acceptable means of compliance for the issuance of a
production organisation approval for organisations that produce
- aeroplanes that are within the scope of CSLSA, CSVLA and CS23 level 1;
- sailplanes or powered sailplanes that are within the scope of CS22; or
- balloons, hotair airships and gas airships that are ELA2 aircraft,
that are not classified as complex motor-powered aircraft, as well as products or parts used on these
products.
21.A.131 GM Scope – Applicable design data
Applicable design data is defined as all necessary drawings, specifications and other technical
information provided by the applicant for, or holder of a design organisation approval, TC, STC,
approval of repair or minor change design, or UKTSO authorisation and released in a controlled
manner to a production organisation approval holder. This should be sufficient for the development of
production data to enable repeatable manufacture to take place in conformity with the design data.
Prior to issue of the TC, STC, approval of repair or minor change design or UKTSO authorisation, or
equivalent, design data is defined as ‘not approved’ but parts and appliances may be released with an
CAA Form 1 as a certificate of conformity.
After issue of the TC, STC, approval of repair or minor change or UKTSO authorisation, or equivalent,
this design data is defined as ‘approved’ and items manufactured in conformity are eligible for release
on an CAA Form 1 for airworthiness purposes.
For the purpose of Subpart G of Part 21, the term ‘applicable design data’ includes the information
related to the applicable engine exhaust emissions and aeroplane CO2 emissions production cut-off
requirements.
21.A.131 GM1-ELA Scope – General applicability of AMC-ELA and the use of AMC-ELA as a baseline outside its scope
The AMC indicated with ‘AMC-ELA’ and the GM related to them (as indicated with ‘GM-ELA’), provide
an alternative set of AMC and GM to the other available AMC and GM.
The AMC-ELA provide acceptable means to meet the requirements for small, non-complex
organisations that produce aircraft as specified in AMC-ELA No 1 to 21.A.131.
If the AMC-ELA are not applicable (for instance for small, non-complex organisations that produce
other low-risk products that are outside the scope of AMC-ELA No 1 to 21.A.131, e.g. light rotorcraft,
CS-23 Level 2, etc.), the applicant is not obliged to use any other available AMC. Switching to those
other available AMC will not necessarily provide a means of compliance that is proportionate. Since
AMC are a means, but not the only means, of showing compliance, applicants and approval holders
can also propose alternative means of compliance. These alternative means can use the AMC-ELA
as a baseline, and complement them by additional or more stringent controls, processes or methods.
This allows a gradual increase in the level of detail of the established procedures and the
thoroughness of the implemented tools for POA approval. This enables the introduction of a
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