Aircraft Flight Operation Regulations Article 11

An operator shall ensure that a flight will not be commenced unless it has been ascertained by every reasonable means available that facilities directly required on such flights for the safe operation of the aircraft and the protection of the passengers are adequate for the type of operation for which the flight is to be conducted and are adequately operated for this purpose. The operator shall also ensure that any inadequacy of facilities observed in the course of operations is reported to the authority responsible for them, without delay.