The operators are required to carry modifications/inspections on the aircraft/accessories in the interest of safety and as a condition of Certificate of Airworthiness of the aircraft remaining in force. NAA declares mandatory modifications only for the aircraft which are operating in the state of the above mentioned NAA on the basis of Airworthiness Directives issued by the regulatory authorities of countries of manufacture i..e FAA (USA), DGAC (France) and CAA (UK) etc, on the components or items of equipment.
It is the responsibility of the operators importing the aircraft into the country to ensure that all the relevant Airworthiness Directives/ modifications/inspections issued by the regulatory authority of the country of manufacture are complied with before issuance of Certificate of Airworthiness. Any modifications and inspections for which the date of compliance is due after the issue of Certificate of Airworthiness shall be monitored closely and if required logbook entries made to that effect. The operators should ensure that modifications which are pending at the time of Certificate of Airworthiness are complied within specified time as stated in airworthiness directive. The operators are required to submit the compliance status of all Airworthiness Directives/modifications issued by the concerned regulatory authorities to the Regional Airworthiness Office at the time of issuance of Certificate of Airworthiness. Any false statement in regard to the compliance status of mandatory modifications/inspections will be viewed seriously and such actions will attract provision of Aircraft Rules for imposing penalties against the firm/ QCM/ Engineers, as the case may be.
Certificate of Airworthiness will not be renewed if it is observed that any mandatory modifications/inspections due on the aircraft, aircraft components or items of equipment installed on the aircraft have not been complied with.
What would happen if mandatory modification has not been carried out on an Aircraft?
If the mandatory modification has not been carried out within the prescribed time frame the C of A will become invalid.
The CMR Carnot be issued as per AN 12 paragraph 3. which states “All modification and inspections deemed mandatory by NAA must been carried within the prescribed time frame.
Any extension to the limiting period must be authorized by NAA.
