Originally Posted by
noske
The Ejets also have honeywell DVDRs. One at the front and one at the back.
DIGITAL VOICE DATA RECORDER (DVDR) SYSTEM
The digital voice data recorder system (DVDR) combines a flight data recorder (FDR) and a cockpit voice recorder (CVR) in a single unit. Two DVDR units are installed. DVDR 1 is installed in the forward electronic bay, and the DVDR 2 in the aft electronic bay. Each unit receives, records and preserves all required data parameters and voice recordings from the cockpit crew and area microphones.
The DVDR unit is capable of recording the last 120 min of audio information from cockpit area microphone and primary crew microphones and 25 h of flight data.
The DVDR automatically starts recording audio information as soon as power up is performed and continues until the power down. The flight data begins to be recorded when the first engine is started.
The DVDRs FDR data is available through the MCDU for maintenance purposes only.
If the DVDR power system fails, an EICAS message is generated to indicate the failure. All DVDR EICAS messages are advisory and some of them are inhibited in critical phases of flight, such as takeoff.