Page 249 - UK Regulation Part 21 Initial Airworthiness Annex I (consolidated) March 2022

PART 21 - INITIAL AIRWORTHINESS (ANNEX I)

APPENDIX 9 Appendix IX - Certificate of release to service - CAA Form 53
CAA Form 53
COMPLETION INSTRUCTIONS
The Block BRIEF DESCRIPTION OF WORK PERFORMED appearing in CAA FORM 53 should
include reference to the approved data used to perform the work.
The Block LOCATION appearing in CAA FORM 53 refers to the location where the maintenance has
been performed, not to the location of the facilities of the organisation (if different).

APPENDIX 10 Appendix X - Production Organisation Approval Certificate - CAA Form 55
Production Organisation Approval Certificates referred to in Subpart G of Annex I (Part 21)

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