SUBJECT
REF. MDL.
REPORT NO.
INSTRUCTIONS FOR CONTINUED AIRWORTHINESS
GA182
ICA182-2
Rev. A
10/15/12
SEE NON-DISCLOSURE NOTICE ON THE COVER PAGE
94 of 101
Copyright 2012
Eagle Copters
All Rights Reserved
f.
Once the branch circuit loads are within limits, test the current load for
the entire aircraft while all power for the aircraft is being supplied by
the aircraft generator. Perform this load analysis test by powering up
all equipment on the aircraft that is intended to be operated at the
same time as the audio system. Additionally, key the three highest
power communication transmitters at the same time, if possible, while
the current measurements are being taken. Clamp the ammeter
around the generator output wire near the point that it enters the
aircraft master electrical distribution box. Confirm that the current draw
during the above described test is less than the generator system
rating.
7.2
Audio System Functional Check
a.
Perform a check of all power and ground leads to confirm they are
connected properly before applying power to the system. Incorrect
wiring may cause damage to the units.
b.
Connect headset adapter cables, headsets and switches. Apply power
to audio system, radios and related accessories. Activate ICS and
confirm p
roper operation. Place ‘PILOT ISOLATE/NORMAL’ switch in
‘PILOT ISOLATE’ position. Key transmit switch and confirm proper
operation of COM1. If a Co-Pilot COM2 Isolate switch is installed,
repeat this process for the Co-Pilots installation.
c.
Place the ‘PILOT ISOLATE’ switch in ‘NORMAL’ position and check all
transceivers, receivers and audio devices. Repeat this process for the
Co-Pilots COM2 Isolate switch if installed.
d.
If testing a Digital Audio System, or an Analog Audio system fitted with
G11437 Relay Modules, perform steps c and d with COPILOT
ISOLATE switch and copilot/COM2 operation.
e.
Check all pilot, copilot and passenger audio control panels for proper
operation
f.
Perform run-up of aircraft to verify proper operation of all control
heads, radios, and headset locations. Perform test of aircraft alert
tones and verify their presence, proper threshold, and proper audio
level. Do not test fly aircraft if any aircraft native alert tone is not
performing properly. Correct any defects noted and re-test prior to any
test flight.
