Document ID: chunk:federal_register_of_legislation:F2024C00332:reg:8:p7
Version: federal_register_of_legislation:F2024C00332
Segment Type: reg
Provision Reference: reg 8 (pt 7/11)
Character Range: 191865–194566

a certificate of airworthiness after 1 January 1988.

11.25  Combination recorders
  If the combined effect of sections 11.23 and 11.24 is that the rotorcraft must be fitted with both 1 FDR and 1 CVR, the requirements may be met by the fitment of 1 combination recorder.

11.26  FDR, CVR and combination recorder technical requirements
 (1) An FDR, or combination recorder, must comply with one of the following:
 (a) the requirements of Civil Aviation Order 103.19;
 (b) (E)TSO-C124a.
Note: These standards include the minimum recording time requirements.
 (2) A CVR, or combination recorder, must comply with one of the following:
 (a) the requirements of Civil Aviation Order 103.20;
 (b) (E)TSO-C123a.
Note: These standards include the minimum recording time requirements.
 (3) The operator of a rotorcraft that is required to be fitted with any of the following must ensure that, at any time:
 (a) for an FDR or combination recorder — the recorder retains its last 25 hours of flight data recording;
 (b) for a CVR or combination recorder — the recorder retains its last 30 minutes of cockpit voice recording;
 (c) for an FDR or combination recorder — the recorder data is preserved from the last 2 occasions on which flight data recording was calibrated.
Note: The purpose of paragraph (c) is to enable the determination of the accuracy of recorded data.

11.27  Use of FDR, CVR and combination recorders
 (1) Subject to subsection (4), an FDR fitted to a rotorcraft under this Division must record continuously from the time when the rotorcraft first begins moving under its own power, until the time the flight is terminated and the rotorcraft can no longer move under its own power.
 (2) Subject to subsection (4), a CVR fitted to a rotorcraft under this Division must:
 (a) start to record before the rotorcraft first begins moving under its own power for a flight;
 (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 rotorcraft 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 a rotorcraft under this Division, must record continuously during the same periods as an FDR and CVR are required to operate under subsections (1) and (2).
 (4) If:
 (a) there is no