Article 84 Use of flight recording systems and preservation of recordsI1

On any flight on which a flight recorder is required to be carried in an aeroplane in accordance with article 35, it must be operated continuously from the time the first engine is started for the purpose of making a flight until the time the last engine is shut down after landing.

On any flight on which a flight recorder is required under article 35 to be carried in a helicopter, it must be operated continuously from the time the rotors first turn for the purpose of making a flight until the rotors are next stopped.

In the event of an incident or accident the pilot-in-command and the operator of the aircraft must ensure that flight recorders are de-activated and must, subject to article 171, preserve the flight recorder and records in accordance with such requirements as the Governor may prescribe or as the Governor directs.

The operator of the aircraft must ensure that operational checks and evaluations of recordings from the flight data recorder and cockpit voice recorder systems are conducted in accordance with the specified requirements, to ensure the continued serviceability of the recorders.