Document ID: chunk:federal_register_of_legislation:F2024C01027:reg:15:p40
Version: federal_register_of_legislation:F2024C01027
Segment Type: reg
Provision Reference: reg 15 (pt 40/182)
Character Range: 241438–244360

or a relevant approved design organisation, in writing, for approval of a major change in the type design of the aircraft, aircraft engine or propeller.
 (2) An applicant is entitled to the approval if the applicant:
 (a) submits with the application substantiating data and necessary descriptive data for inclusion in the type design; and
 (b) complies with regulation 21.101.
 (3) Approval of a major change in the type design of an aircraft engine is limited to the specific engine configuration upon which the change is made unless the applicant identifies in the necessary descriptive data for inclusion in the type design the other configurations of the same engine type for which approval is requested and shows that the change is compatible with the other configurations.
Source FARs section 21.97 modified.

21.098  Issue of approval of major change in type design
 (1) Subject to regulation 11.055, CASA, an authorised person or an approved design organisation must approve a major change in the type design of an aircraft, aircraft engine or propeller if the applicant for the approval:
 (a) is eligible, under subregulation 21.097(1), to apply for the approval; and
 (b) applies for the approval in accordance with this Subpart; and
 (c) is entitled, under this Subpart, to the approval; and
 (d) otherwise complies with this Part.
 (2) Subregulation (3) applies if, under regulation 21.251, CASA authorises a relevant approved design organisation to determine whether the applicant meets a requirement mentioned in subregulation (1).
 (3) If the approved design organisation is satisfied that the applicant meets the requirement, the organisation may give CASA a certificate to that effect.
 (4) For subregulation (1), if an approved design organisation gives CASA a certificate under subregulation (3), CASA need consider only that certificate in deciding whether the applicant meets the requirement.

21.099  Required design changes
 (1) If an airworthiness directive is issued for an aircraft, aircraft engine or propeller, and CASA considers that design changes are necessary to correct the unsafe condition of the aircraft, aircraft engine or propeller, the holder of the type certificate for the aircraft, aircraft engine or propeller must, on CASA's request, submit appropriate design changes for approval.
Penalty: 50 penalty units.
 (1A) If approval is granted for design changes mentioned in subregulation (1), the holder of the type certificate for the aircraft, aircraft engine or propeller must, on request by the operator of an affected aircraft, aircraft engine or propeller previously certificated under the type certificate, give to that operator the descriptive data covering the design changes.
Penalty: 50 penalty units.
 (2) In a case where there are no current unsafe conditions, but CASA or the holder of the type certificate is satisfied through service experience that changes in type