UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
8
8-3
Jan
15/19
SECTION 3
SERVICING, TROUBLESHOOTING, AND PERIODIC INSPECTIONS
3-1. Servicing
A. The GTN 650 installation contains no user serviceable components or assemblies.
Operations involving the removal of the GTN 650 must be done by authorized
maintenance technicians.
3-2. Troubleshooting
A. Refer to the electrical schematics (Diagram 8-1 and Diagram 8-2) when troubleshooting
the GTN 650 installation. If the GTN 650 unit fails to operate after troubleshooting efforts,
contact Garmin aviation product support for assistance (ref. para. 1-2).
3-3. Periodic
Inspections/Maintenance
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
GTN 650
INITIAL EACH ITEM AFTER ACCOMPLISHMENT
Inspect the following items every 100 hours or annually
INITIAL
1. Inspect the antennas, electrical wiring and mounts for security,
damage, and obvious defects.
2. Inspect the GTN 650 unit and mount for security, damage, and
obvious defects.
3. Inspect interfaced fuel management system equipment (if equipped)
for security, damage, and obvious defects.
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