K.
21A.602A Eligibility
Any natural or legal person that produces or is preparing to produce an ETSO article, and that has demonstrated, or is in the process of demonstrating, its capability under 21A.602B shall be eligible as an applicant for an ETSO authorisation.
21A.602B Demonstration of capability
Any applicant for an ETSO authorisation shall demonstrate its capability as follows:
(a) for production, by holding a production organisation approval, issued in accordance with Subpart G, or through compliance with Subpart F procedures; and
(b) for design:
1. for an Auxiliary Power Unit, by holding a design organisation approval, issued by the Agency in accordance with Subpart J;
2. for all other articles, by using procedures setting out the specific design practices, resources and sequence of activities necessary to comply with this Part.
21A.603 Application
(a) An application for an ETSO authorisation shall be made in a form and manner established by the Agency and shall include an outline of the information required by 21A.605.
(b) When a series of minor changes in accordance with 21A.611 is anticipated, the applicant shall set forth in its application the basic model number of the article and the associated part numbers with open brackets after it to denote that suffix change letters or numbers (or combinations of them) will be added from time to time.
21A.604 ETSO Authorisation for an Auxiliary Power Unit (APU)
With regard to ETSO authorisation for an Auxiliary Power Unit:
(a) 21A.15, 21A.16B, 21A.17, 21A.20, 21A.21, 21A.31, 21A.33, 21A.44 shall apply by way of derogation from 21A.603, 21A.606(c), 21A.610 and 21A.615, except that an ETSO Authorisation shall be issued in accordance with 21A.606 instead of the type-certificate;
(b) Subpart D or Subpart E of this Part 21 is applicable for the approval of design changes by way of derogation from 21A.611. When Subpart E is used, a separate ETSO authorisation shall be issued instead of a supplemental type-certificate.
21A.605 Data requirements
The applicant shall submit the following documents, to the Agency:
(a) A statement of compliance certifying that the applicant has met the requirements of this Subpart.
(b) A Declaration of Design and Performance (DDP).
(c) One copy of the technical data required in the applicable ETSO.
(d) The exposition (or a reference to the exposition) referred to in 21A.143 for the purpose of obtaining an appropriate production organisation approval under Subpart G or the manual (or a reference to the manual) referred to in 21A.125(b) for the purpose of manufacturing under Subpart F without production organisation approval.
(e) For an APU, the handbook (or a reference to the handbook) referred to in 21A.243 for the purpose of obtaining an appropriate design organisation approval under Subpart J.
(f) for all other articles, the procedures referred to in 21A.602B(b)(2).
21A.606 Issue of ETSO authorisation
The applicant shall be entitled to have an ETSO authorisation issued by the Agency after:
(a) demonstrating its capability in accordance with 21A.602B; and
(b) demonstrating that the article complies with the technical conditions of the applicable ETSO,