UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
8
12-3
Jan
15/19
SECTION 3
SERVICING, TROUBLESHOOTING, AND PERIODIC INSPECTIONS
3-1. Servicing
A. The GMA 350Hc audio panel installation contains no user serviceable components or
assemblies. Operations involving the removal of the audio panel must be done by
authorized maintenance technicians.
3-2. Troubleshooting
A. Refer to the
GMA 350/350H Audio Panel Maintenance Manual
(para. 1-2) and the
electrical schematic in Diagram 12-1 when troubleshooting the GMA 350Hc installation. If
the audio panel fails to operate after troubleshooting efforts, contact Garmin aviation
product support for assistance (ref. para. 1-2).
3-3. Periodic
Inspections
A. The following inspection checklist is intended as a guide for 100 hour/annual inspections
for aircraft operating under normal conditions. More frequent inspections may be required
should adverse operating conditions be encountered.
Date
Signature
Aircraft Registration Number
Aircraft Serial Number
GMA 350Hc AUDIO PANEL
INITIAL EACH ITEM AFTER ACCOMPLISHMENT
Inspect the following items every 100 hours or annually
INITIAL
1. Inspect the antenna (if equipped), electrical wiring and mounts for
security, damage, and obvious defects.
2. Inspect the GMA 350Hc audio panel unit and mount for security,
damage, and obvious defects.
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