3 - Communications Flashcards
How do you adjust the volume of the aural warning system?
It is not adjustable by the pilots because the aural warning system does not go through the volume control switches
What is the purpose of the VOICE/BOTH switch?
BOTH allows the pilot to hear the Morse code and voice messages from the station. VOICE filters out the morris code so only the voice message can be Heard.
Explain the EMER/NORM switch on the ACPs
When there is a failure of the audio integrating system, the EMER positions should be selected. This causes the electronic circuits of the audio integrating system to be bypassed and most of the ACP functions will be in operative if the pilot were to select, his headset will be directly connected to NAV 1 and VHF 1. the aural warning system will be operable.
Where is the cockpit voice recorder located?
The CVR is located in the tail section of the airplane
How long does the CVR record?
There are two types, 30 and 120 minutes. At the end of the cycle it will re-record.
What does the FDR record and for how many hours?
It records the last 25 hours of aircraft and-flight parameter data.
When does the FDR start recording?
When any one of the following occur.
Beacon is on
Strobes are on
weight off wheels
What is the purpose of the FDR EVENT switch?
This will highlight an event on the FDR. The highlight is accomplished by pressing the FDR EVENT switch for two seconds, which will then display a green FDR EVENT advisory status message.
