Page 214 - UK Regulation Part 21 Initial Airworthiness Annex I (consolidated) March 2022

PART 21 - INITIAL AIRWORTHINESS (ANNEX I)

consider that these Subparts are only an alternative way for production to Part 21 Section
A Subpart G and Section B Subpart G. To meet the ICAO airworthiness obligations and to
issue a Certificate of Airworthiness for an individual aircraft in a practical and efficient way,
the CAA must use a system of approval of production organisations (POA) under Part 21
Section A Subpart G and Section B Subpart G, providing to the CAA the necessary
confidence in technical standards. The consistent standards of these approvals will also
support the standardisation efforts by the CAA. Nevertheless it is recognised that it is not
always practical, economical and/or advisable to use the POA.
Considering ICAO airworthiness obligations as well, Part 21 Section A Subpart F and
Section B Subpart F is provided for such a case on the basis of the following principles:
a) Subpart F must be considered as an alternative option for particular cases
b) Its adoption must be done on an individual basis, as consequence of an
assessment by the CAA (see 21.A.121, 21.A.133(a) and their associated CS and
GM).
2. Application
The CAA must receive an application for a letter of agreement on an CAA Form 60 (see
below) completed by the applicant. The eligibility of the application should be verified in
relation to the CAA procedures, based on 21.A.121 and its associated CS and GM. The
applicant should be advised accordingly about the acceptance or rejection of the
application.
3. Location of the applicant
The location of the applicant seeking acceptance for production under Part 21 Section A
Subpart F determines which CAA is responsible for issuing the letter of agreement.
CAA Form 60 Issue 3
Block 1: The name of the applicant must be entered. For legal entities the name must be
as stated in the register of the National Companies Registration Office. In this case a
copy of the entry in the register of the National Companies Registration Office must be
provided to the CAA.
Block 2: State the trade name by which the applicant is known to the public if different
from the information given in Block 1. The use of a logo may be indicated in this Block.
Block 3: State all locations of manufacturing activities that are covered by the application.
Only those locations must be stated that are directly under the control of the applicant
stated in Block 1.
Block 4: This Block must include further details of the manufacturing activities under the
approval for the addresses indicated in Block 3. The Block ‘Identification’ must indicate the
products, parts or appliances intended to be produced, while the Block ‘Termination’ must
address any information on the limitation of the activity, e.g., by stating the intended
number of units to be manufactured or the expected date of completion of the
manufacturing activities.
Block 5: This Block must state evidence supporting the determination of applicability as
stated in 21.A.121. In addition an outline of the manual required by 21.A.125A(b) must be
provided with the application.
Block 6: The information entered here is essential for the evaluation of eligibility of the
application. Therefore special attention must be given concerning the completion of this
Block either directly or by reference to supporting documentation in relation to the
requirements of 21.A.122 and AMC No 1 to 21.A.122.
Block 7: The information to be entered here must reflect the number of staff, or in case of
an initial approval the intended number of staff, for the manufacturing activities under this
application and therefore must include also any associated administrative staff.
Block 8: State the name of the person authorised to sign the application.

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