The holder of a Type Certificate (TC), a Supplemental Type Certificate (STC), a Parts Manufacturer Approval (PMA), a Technical Standard Order Authorization (TSOA), or the licensee of a Type Certificate shall report to the CAA any failure, malfunction or defect during operation in any product, parts, or article, that has left its quality system and that it determines has resulted in any of the occurrences listed in this article. The initial report shall be made in a prescribed form to the CAA within 24 hours after it has determined that the malfunction, failure, or defect required to be reported has occurred.
1) Fires caused by a system or equipment failure, malfunction, or defect;
2) An engine exhaust system failure, malfunction, or defect which causes damage to the engine, adjacent aircraft structure, equipment, or component;
3) The accumulation or circulation of toxic or noxious gases in the crew compartment or passenger cabin;
4) A malfunction, failure, or defect of a propeller control system;
5) A propeller of rotor craft hub or blade structural failure;
6) Flammable fluid leakage in areas where an ignition source normally exists;
7) A brake system failure caused by structural or material failure during operation;
8) A significant aircraft primary structural defect or failure caused by any autogenous condition (fatigue, corrosion, under-strength, etc.);
9) Any abnormal vibration or buffeting caused by a structural or system malfunction, defect, or failure;
10) An engine failure;
11) Any structural or flight control system malfunction, defect, or failure which causes an interference with normal control of the aircraft for which derogates the flying qualities;
12) A malfunction or failure of more than one airspeed, attitude or altitude instrument during a given operation of the aircraft;
13) A complete loss of more than one electrical power generating system or hydraulic power system during a given operation of the aircraft.
Whenever the investigation of an accident or service difficulty report shows that an article manufactured under the holder of a Type Certificate (TC), a Supplemental Type Certificate (STC), a Parts Manufacturer Approval (PMA), a Technical Standard Order Authorization (TSOA), or the licensee of a Type Certificate shall report to the CAA the results of its investigation and any action taken or proposed by the manufacturer to correct that defect. If action is required to correct the defect in existing articles, the manufacturer shall submit the data necessary for the issuance of an appropriate airworthiness directive to CAA.