Page 135 - UK Regulation Part 21 Initial Airworthiness Annex I (consolidated) March 2022

PART 21 - INITIAL AIRWORTHINESS (ANNEX I)

This acceptable means of compliance provides means to develop a procedure for the
issue of a permit to fly including approval of the flight conditions.
Each POA applicant or holder must develop its own internal procedure following this AMC,
in order to obtain the privilege of 21.A.163(e) to issue permits to fly for an aircraft under
procedures agreed with its CAA for production, when the production organisation itself is
controlling under its POA the configuration of the aircraft and is attesting conformity with
the design conditions approved for the flight.
2. PROCEDURE FOR THE ISSUE OF A PERMIT TO FLY
2.1 Content
The procedure must address the following points:
- as relevant, in accordance with 21.A.710(b), the approval of flight conditions;
- conformity with approved conditions;
- issue of the permit to fly under the POA privilege;
- authorised signatories;
- interface with the local authority for the flight.
2.2 Approval of the flight conditions (when relevant)
The procedure must include the process to establish and justify the flight
conditions, in accordance with 21.A.708 and how compliance with 21.A.710(c) is
established, and include the CAA Form 18B as defined in AMC 21.A.709(b) for the
approval under the POA privilege.
2.3 Conformity with approved conditions
The procedure must indicate how conformity with approved conditions is made,
documented and attested by an authorised person.
2.4 Issue of the permit to fly under the POA privilege
The procedure must describe the process to prepare the CAA Form 20b and how
compliance with 21.A.711(c) and (e) is established before signature of the permit to
fly.
2.5 Authorised signatories
The person(s) authorised to sign the permit to fly under the privilege of 21.A.163(e)
must be identified (name, signature and scope of authority) in the procedure, or in
an appropriate document linked to the Production Organisation Exposition.
2.6 Interface with the local authority for the flight
The procedure must include provisions describing the communication with the local
authority for compliance with the local requirements which are outside the scope of
the conditions of 21.A.708(b) (see 21.A.711(e)).
21.A.165 Obligations of the holder
The holder of a production organisation approval shall:
(a) ensure that the production organisation exposition furnished in accordance with point
21.A.143 and the documents to which it refers, are used as basic working documents
within the organisation;
(b) maintain the production organisation in conformity with the data and procedures approved
for the production organisation approval;
(c) .
1. determine that each completed aircraft conforms to the type design and is in
condition for safe operation prior to submitting statements of conformity to the CAA;
or
2. determine that other products, parts or appliances are complete and conform to the
approved design data and are in a condition for safe operation before issuing an
CAA Form 1 to certify conformity to approved design data and condition for safe
operation;
3. Additionally, in the case of environmental requirements determine that:
(i) the completed engine is in compliance with the applicable engine exhaust
emissions requirements on the date of manufacture of the engine: and
(ii) the completed aeroplane is in compliance with the applicable CO2 emissions
requirements on the date its first certificate of airworthiness is issued.
4. determine that other products, parts or appliances conform to the applicable data
before issuing an CAA Form 1 as a conformity certificate.
(d) record all details of work carried out;
(e) establish and maintain an internal occurrence reporting system in the interest of safety, to
enable the collection and assessment of occurrence reports in order to identify adverse
trends or to address deficiencies, and to extract reportable occurrences. This system
shall include evaluation of relevant information relating to occurrences and the
promulgation of related information;
(f) .
1. report to the holder of the type-certificate or design approval, all cases where
products, parts or appliances have been released by the production organisation
and subsequently identified to have possible deviations from the applicable design
data, and investigate with the holder of the type-certificate or design approval in
order to identify those deviations which could lead to an unsafe condition;
2. report to the CAA the deviations which could lead to an unsafe condition identified
according to point (1). Such reports shall be made in a form and manner
established by the CAA under point 21.A.3A(b)(2);
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