Document ID: chunk:federal_register_of_legislation:F2024C01027:reg:15:p46
Version: federal_register_of_legislation:F2024C01027
Segment Type: reg
Provision Reference: reg 15 (pt 46/182)
Character Range: 257668–260739

makes the altered aircraft, aircraft engine or propeller unsafe for its intended use.
 (4) Subject to regulation 11.055, if the application is made to an authorised person or approved design organisation, the authorised person or approved design organisation must vary the certificate if satisfied that:
 (a) the altered aircraft, aircraft engine or propeller complies with the applicable airworthiness requirements mentioned in subregulations 21.101(1) and (2); and
 (b) no feature or characteristic of the change makes the altered aircraft, aircraft engine or propeller unsafe for its intended use.
 (5) Subregulation (6) applies if, under regulation 21.251, CASA authorises a relevant approved design organisation to determine whether an altered aircraft, aircraft engine or propeller meets:
 (a) an applicable airworthiness requirement mentioned in subparagraph (3)(a)(i); or
 (b) the requirement mentioned in paragraph (3)(b).
 (6) If the approved design organisation is satisfied that the altered aircraft, aircraft engine or propeller meets the requirement, the organisation may give CASA a certificate to that effect.
 (7) For subregulation (3), if an approved design organisation gives CASA a certificate under subregulation (6), CASA need consider only that certificate in deciding whether the altered aircraft, aircraft engine or propeller meets the requirement.
 (8) Regulations 21.033 (Inspection and tests) and 21.053 (Statement of conformity) apply in relation to the application, with respect to each change, as if:
 (a) the application were an application for a type certificate under Subpart 21.B; and
 (b) each reference to CASA in those regulations were a reference to the person or organisation to whom the application was made.
Subpart 21.F—Production under type certificate only

21.121  Applicability
 (1) This Subpart prescribes rules for the production of an aircraft, aircraft engine or propeller under a type certificate only.
 (2) For this Subpart, a person manufactures an aircraft, aircraft engine or propeller under a type certificate only if the person is the holder, or licensee, of a type certificate, but not a production certificate, for the aircraft, aircraft engine or propeller.
Source FARs section 21.121 modified.
Note: Subpart 21.G deals with production certificates.

21.123  Production under type certificate
 (1) Each manufacturer of an aircraft, aircraft engine or propeller being manufactured under a type certificate only must:
 (a) make each aircraft, aircraft engine or propeller available for inspection by CASA; and
 (b) maintain at the place of manufacture the technical data and drawings necessary for CASA to determine whether the aircraft, aircraft engine or propeller and its parts conform to the type design; and
 (c) establish and maintain an approved production inspection system that:
 (i) meets the requirements of subregulation 21.125(2); and
 (ii) ensures that each aircraft, aircraft engine or propeller manufactured under the type certificate more than 6 months after it was issued conforms to the type