Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual page 844

SECTION 9 - SUPPLEMENTS CESSNA
SUPPLEMENT 20 MODEL 208B 867 SHP
GARMIN G1000
L-3 COMMUNICATIONS FA2100 COCKPIT VOICE
AND FLIGHT DATA RECORDER
GENERAL
The FA2100 Cockpit Voice and Flight Data Recorder (CVDR) is
mounted on a shelf in the tailcone of the Model 208B, and is designed
to record multiple flight parameters and audio that can be recovered to
aid in an investigation in the event of an accident. The system is
transparent to the flight crew and posts an advisory message only if the
Cockpit Voice or Flight Data Recorder has failed.
If a white CVR FAIL or FDR FAIL message is posted, the Cockpit Voice
or Flight Data Recorder functions, respectively, of the FA2100 CVDR
are inoperative. There is no effect on the safety of continued flight with
either or both messages posted. The unit should be serviced for proper
operation.
Data is recorded digitally based on inputs from a Garmin Data
Concentrator Unit GSD 41 located on the bottom shelf in the tailcone,
and an accelerometer and a flap potentiometer located in the cabin
overhead. The Voice Recorder uses two audio summing amplifiers
located in the forward pedestal structure, recording audio from the
cockpit area microphone located directly over the audio panel, both
crew members' headset audio and microphones, aural tones, and
speaker audio activity.
The CVDR is powered by the main electrical bus and protected by a
pull-off type circuit breaker labeled CVDR, located on the electrical
equipment circuit breaker panel in the cockpit. Power to the CVDR is
interrupted by an impact switch located near the CVDR to prevent
recording over existing data after an impact. The Data Concentrator
Unit GSD 41 is powered by Avionics Bus 1 and protected by a pull-off
type circuit breaker labeled DCU, located on the avionics circuit
breaker panel in the cockpit.
The FA2100 CVDR system meets TSO C123a and C124a
requirements, and it includes an underwater locator beacon approved
under TSO C121. Neither Cockpit Voice Recorder (CVR) or Flight Data
Recorder (FDR) is required for Part 91 or Part 135 operations on the
Model 208B in the U.S. This CVDR installation does not record all the
data parameters specified by 14 CFR Part 135, Appendix F.
FAA APPROVED
208BPHCUS-S20-00
S20-4 U.S.