C
IRRUS
D
ESIGN
S
ECTION
3A: A
BNORMAL
P
ROCEDURES
SR20
O
THER
C
ONDITIONS
P/N 11934-005
3A-23
Communications Failure
• N
OTE
•
If, after following the checklist procedure, communication is not
restored, proceed with CFR/AIM lost communications proce-
dures.
In the event of an audio panel power failure the audio panel
connects COM 1 to the pilot’s headset and speakers. Setting the
audio panel ‘Off’ will also connect COM 1 to the pilot’s headsets
and speakers.
1. Switches, Controls ............................................................................ CHECK
2. Frequency........................................................................................CHANGE
3. Circuit Breakers.........................................................................................SET
4. Headset ............................................................................................CHANGE
5. Handheld Microphone............................................................... CONNECT
Procedure Complete
Reissue A