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ENSTROM F-28F/280F SERIES MAINTENANCE MANUAL SUPPLEMENT 1
Rev.
3
5-4
Nov
11/11
SECTION 4
SYSTEM MAINTENANCE
NOTE
Removal or installation of equipment will change the aircraft
empty weight and empty weight c.g. These changes will be
recorded on Form F-165A, Basic Weight and Balance Record,
as required (reference Enstrom F-28F/280F Series
Maintenance Manual).
4-1.
Attitude Indicator/Directional Gyro
NOTE
All work must be accomplished in accordance with the
Enstrom F-28F/280F Series Maintenance Manual.
Maintenance procedures are identical for either the attitude
indicator or directional gyro installation.
See Figure 5-1 of this supplement for gyro location(s) in the
instrument panel.
4-1-1. Removal
CAUTION
The attitude indicator and directional gyro are delicate electro-
mechanical instruments, which must be handled with care.
Rough handling can result in damage to the instrument and
reduce performance and life of the instrument.
A. Remove the appropriate gyro in accordance with Paragraph 7-18.A Steps (1) through
(4) of the maintenance manual.
B. Attitude indicator only: Remove the slip indicator by removing the two attachment
screws. Pull the slip indicator up over the adjustment knob.
4-1-2. Inspection
A. Inspect the gyro unit(s) in accordance with Paragraph 7-19 of the maintenance
manual.
4-1-3. Repair
A. Replace the gyro unit(s) if the cover glass is loose, cracked, broken, or when the unit
is defective.
B. Attitude indicator only: Replace the slip indicator if it is damaged or defective.
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