Aircraft Flight Operation Regulations Article 238

The instruments installed in an aircraft shall be sufficient for the flight crew to operate the aircraft, carrying out any procedures required, and shall offer related information to meet the operation limitations to be observed in expected flight conditions.An operator shall establish aircraft type-specific aircraft operating manuals, for the use and guidance of operation personnel on board and flight crew, the content of which shall include the normal, abnormal, emergency procedures and detailed system descriptions, and related essential checklists for that type of aircraft. The design of the manual, procedures and checklists shall observe Human Factors principles.Checklists are provided in accordance with the procedures of aircraft operating manual, shall be used by flight crews during all phases of operation and emergencies. It must be in compliance with the operating procedures in the aircraft operating manual, Flight Operations Manual or other documents associated with certificate of airworthiness.