UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
3
5-3
Nov
11/11
SECTION 3
SERVICING, TROUBLESHOOTING, AND PERIODIC INSPECTIONS
3-1. Servicing
A. The attitude indicator and directional gyro installations contain no user serviceable
components or assemblies. Operations involving the removal of either of the gyros must be done
by authorized maintenance technicians.
3-2. Troubleshooting
A. Refer to electrical schematics in Diagram 5-1 when troubleshooting the attitude
indicator or directional gyro installations.
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
ATTITUDE INDICATOR AND/OR DIRECTIONAL GYRO
INITIAL EACH ITEM AFTER ACCOMPLISHMENT
Inspect the following items every 100 hours or annually
INITIAL
1. Inspect the electrical wiring and mounts for security, damage, and
obvious defects.
2. Inspect the gyro unit and mount for security, damage, and obvious
defects.
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