Piper ARCHER III Pilot Operating Handbook page 306

SECTION9
SUPPLEMENT S
SECTION 1 - GENERAL
This supplement supplies information necessary for the operation of the
airplane when the optional Flightcom model 403 intercom is installed. The
information contained within this supplement is to be used in conjunction
with the complete handbook.
SECTION 2 - LIMIT A TIO NS
No change.
SECTION 3 - EMERGENCY PROCEDURES
Intercom Failsafe Feature
In the event of a power supply inten-uption to the intercom, the integral failsafe
mode in the intercom will provide the pilot's and copilot's headsets with normal
JCS and aircraft radio operation. When using a stereo headset set the headset
switch to Mono. Using headsets with a stereo headphone plug but without a
Mono setting will cause only one earphone to be active.
The Flightcom model 403 intercom does not have a dedicated circuit breaker
but is protected via an in-line fuse located behind the instrument panel.
SECTION 4 - NORMAL PROCEDURES
Adjusting the Intercom and Headsets
To adjust the intercom and headsets:
I. Plug headsets into tbe co-pilot and passenger jacks in the aircraft.
Using stereo headphones without a Mono setting
will cause only one earphone to be active.
2. Tum on the aircraft BA TT MASTR switch to turn oo the intercom.
3. Set the intercom Volume control knob to the 11 o'clock position.
4.
Set the intercom Squelch control knob to the 3 o'clock position.
5. Turn up each headset volume to 1/2 the available volume control.
6. Position the headset boom microphone 1/8" from your lips to the side
of your mouth.
REPORT: VB-2749
9-28, 2 of 4
PA-28-181, ARCHER III
NOTE
ISSUED: December 22, 2017
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