(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.
(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.
(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 design will contribute to the safety of the aircraft, aircraft engine or propeller, the holder of the type certificate may submit appropriate design changes for approval. Upon approval of the changes, and on request by an operator of the same type of aircraft, aircraft engine or propeller, the manufacturer must give information on the design changes to the operator.
(3) An offence against subregulation (1), (1A) or (2) is an offence of strict liability.
Note: For strict liability , see section 6.1 of the Criminal Code .
Source FARs section 21.99 modified.