INSTRUMENTS AND RECORDERS, COCKPIT VOICE RECORDER
Description
Aircraft Operations Manual
12/4.1
S3
PAGE
1
Jun 01/19
Applicable to A/C with Solid State with 30 minutes recording time
1.
GENERAL
The Solid State Cockpit Voice Recorder (SSCVR)
records the last 30 minutes of cockpit communica-
tions and sounds using digital solid state memory
circuits. The recorder has a crashproof memory
capsule and is installed in the rear compartment
accessible through the aft cargo compartment wall.
The SSCVR operates continuously as soon as LH
BAT BUS is powered and ESS AVION switch is set
to ON. It will continue to operate until a force of
more than 2G opens the contacts of the inertia
switch, or the ESS AVION switch is set to OFF.
The SSCVR records audio from four communica-
tion channels, the PA system, the pilot and co
−
pilot
communication and the audio in the flight compart-
ment area. The CVR continuously records each of
the four audio inputs in the solid state flash memory
for a maximum period of 30 minutes, before new
data is recorded.
The solid state memory can be erased provided
aircraft is on ground and gust lock set.
The recorder is provided with an underwater locator
beacon which is automatically started when sub-
merged in water. The locator is battery powered
and will send out acoustic signals for 30 days or 90
days depending on locator type.
2.
MAIN COMPONENTS AND SUBSYSTEMS
Not applicable.
