Document ID: chunk:federal_register_of_legislation:F2024C01173:reg:7:p9
Version: federal_register_of_legislation:F2024C01173
Segment Type: reg
Provision Reference: reg 7 (pt 9/11)
Character Range: 246096–248785

in force from time to time;
 (b) (E)TSO-C124a.
Note: These standards include the minimum recording time requirements.
 (2) A CVR or a combination recorder must comply with one of the following:
 (a) the requirements of Civil Aviation Order 103.20 Instrument 2007, as in force from time to time;
 (b) (E)TSO-C123a.
Note: These standards include the minimum recording time requirements.
 (3) The operator of an aeroplane that is required to be fitted with any of the following must ensure that, at any time:
 (a) for an FDR or a combination recorder—the recorder retains its last 25 hours of flight data recording; and
 (b) for a CVR or a combination recorder—the recorder retains its last 30 minutes of cockpit voice recording; and
 (c) for an FDR or a combination recorder—data are preserved from the last 2 occasions on which flight data recording was calibrated.
Note: The purpose of paragraph (c) is to enable determination of the accuracy of recorded data.

11.33  Use of FDR, CVR and combination recorders
 (1) Subject to subsection (4), an FDR fitted to an aeroplane under this Division must record continuously from the time the aeroplane begins moving under its own power, until the time the flight is terminated and the aeroplane can no longer move under its own power.
 (2) Subject to subsection (4), a CVR fitted to an aeroplane under this Division must:
 (a) start to record before the aeroplane first begins moving under its own power for a flight; and
 (b) as far as practicable, if electrical power is available, start to record as early as possible during the cockpit checks before the engines are started at the beginning of the flight; and
 (c) record continuously until the termination of the flight when the aeroplane is no longer capable of moving under its own power and the engines have been shut down; and
 (d) as far as practicable, if electrical power is available, continue recording until as close as possible to the conclusion of the cockpit checks immediately following engine shutdown at the end of the flight.
 (3) The FDR and the CVR within a combination recorder fitted to an aeroplane under this Division must record continuously during the same periods as an FDR and a CVR are required to operate under subsections (1) and (2).
 (4) If:
 (a) there is no auxiliary power unit or other alternative power source for the aeroplane; and
 (b) it is reasonably necessary to preserve the aeroplane's primary power source in order to start the aeroplane's engines; and
 (c) the flight data recorder is operated continuously during the period beginning just before the engines are started for take-off and ending when the final pilot checklist is completed at the