ORAL *E145 NAV & COM Flashcards
How do you tune a frequency on the RMU?
Press and hold the line select button beside the preset frequency line for approximately 3 secs.
What is the Tuning Backup Control Head (TBCH) used for?
It provides an alternate way to tune NAV 2 and COM 2
What happens if TBCH is placed in Emergency Mode?
NAV and COM tuning possible only with TCBH, RMUs ignored
“AUX ON” appears at top of RMUs
What happens when EMER button is selected on a pilot’s Digital Audio Panel (DAP)?
The pilot is connected to their onside COM and NAV.
[EMER is wired direct - independent of DAP printed circuit board]
The cockpit Voice Recorder (CVR) stores the last _____ hours of recorded information.
2
When does the CVR start recording?
When the batteries are turned on (DC Bus 2 energized)