cockpit voice recorder (CVR) required on
a/c >5700kg or > 9pax seats
CVR uses what power supply
115AC
if registered before 1st April 1998 it records
30 mins
if after then- 2 hours
what does the CVR record
ambient cockpit audio alerts/ warnings radio communications passenger announcements pilot-pilot intercom pilot-cabin intercom
CVR components
control panel cockpit microphone shock & fire resistant recorder head phone jack test switch status light erase switch