GM 21.A.131 Scope – Applicable design data    

CAA ORS9 Decision No. 1

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 a 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 a 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.