Part 121 (Australian Air Transport Operations—Larger Aeroplanes) Manual of Standards 2020
Division 7Flight recorders
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Division 7—Flight recorders
11.28 Definitions—flight recorders
In this instrument:
CVR means cockpit voice recorder.
FDR means flight data recorder.
flight recorder means a combination recorder, FDR or CVR.
Note: A combination recorder is an item of equipment that combines the functions of a flight data recorder and a cockpit voice recorder: see the definition of the term in the CASR Dictionary.
11.29 Flight data recorder
One FDR must be fitted to an aeroplane that has a maximum take-off weight of more than 5 700 kg and is: (a) turbine-powered; or (b) of a type first certificated in its country of manufacture on, or after, 1 July 1965.
11.30 Cockpit voice recorder
One CVR must be fitted to: (a) an aeroplane that has a maximum take-off weight of more than 5 700 kg and which: (i) is turbine-powered; or (ii) is of a type first certificated in its country of manufacture on. or after, 1 July 1965. (b) a multi-engine turbine-powered aeroplane that: (i) has a maximum take-off weight of 5 700 kg or less; and (ii) is pressurised; and (iii) is type certificated in its country of manufacture for operation with more than 11 seats (including seats specifically designed for the use of crew members); and (iv) was first issued with a certificate of airworthiness after 1 January 1988.
11.31 Combination recorders
If the combined effect of sections 11.29 and 11.30 is that the aeroplane must be fitted with both one FDR and one CVR, the requirements may be met by the fitment of: (a) 2 combination recorders; or (b) one FDR and one combination recorder; or (c) one CVR and one combination recorder.