Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual page 816

SECTION 9 - SUPPLEMENTS
SUPPLEMENT 12
ABNORMAL PROCEDURES
AUDIO PANEL FAILURE
Audio panel failure may be indicated by a GMA 1 or (2) FAIL Garmin
System Message or the inability to communicate using the affected
audio panel. This failure may also be accompanied by the loss of some
aural warnings such as Altitude Alert, Autopilot Disconnect, TAWS, and
Traffic alerts.
1. AUDIO 1 or AUDIO 2 Circuit Breaker (affected side) . . . OPEN
2. SPKR Button (operating audio panel) . . . . . . . . . . . . . . . . . . ON
3. COM Radio . . . . . . . . . . . . . . . . . . . . . . . USE ON-SIDE RADIO
•
In the event of an AUDIO 1 failure, a fail-safe circuit
connects the pilot's headset directly to the COM 1 radio.
The speakers on the affected side will be inoperative.
•
The operating audio panel will not be able to listen to
COM or NAV audio from the side with the inoperative
audio panel.
A fail-safe circuit is not provided for an AUDIO 2 failure,
which will result in the copilots' headset and right
cockpit speaker becoming inoperative.
NORMAL PROCEDURES
There is no change to the airplane normal procedures for airplanes
equipped with Dual Garmin GMA 1347 Audio Panels.
PERFORMANCE
There is no change to the airplane performance for airplanes equipped
with Dual Garmin GMA 1347 Audio Panels.
S12-8
U.S.
(Continued)
FOR COMMUNICATION
NOTE
CAUTION
CESSNA
MODEL 208B 867 SHP
GARMIN G1000
(pull out)
FAA APPROVED
208BPHCUS-S12-00