GH-3100
Installation & Operation Manual
TP-559
Maintenance
Page 4-1
Revision K
March 30, 2017
Section 4
Maintenance
4.1 INTRODUCTION
This chapter contains general flightline maintenance and troubleshooting procedures. Troubleshooting is
intended to aid in isolating failures to a defective assembly.
4.2 CONTINUED AIRWORTHINESS
The GH-3100 and DCM-3100 do not require scheduled maintenance or scheduled overhaul. A need for
maintenance is indicated when unit fails to operate using applicable inputs as described in this manual.
NOTE
The GH-3100 Electronic Standby Instrument System is subject to bi-
annual requirements of FAA document
CFR FAR Part 91.411
.
•
All units shall be maintained on a “Condition Monitored’ basis. Functional monitoring is based upon
the following:
•
Observation of self-test failure notification (applicable only when unit has self-test capability).
•
Visual observation by the user.
•
All units have unlimited service life, where service life is defined as that point in time when repair is
no longer economical.
4.2.1 Periodic Maintenance
Regular maintenance of the GH-3100 Electronic Standby Instrument System is not required except as
included in this section.
1.
At regular inspection intervals:
a.
Check that mounting hardware is secure.
b.
Check that cable connectors are properly mated and secured.
c.
Check that connecting cables are not cut or pinched.
d.
Check GH-3100 Electronic Standby Indicator faceplate for cleanliness. The bezel, softkey and
display glass can be cleaned with a damp lint-free, static-free cloth. If necessary, clean with a
soft cloth moistened with a mild solution of soap and water. Care should be taken to avoid
scratching the surface of the display or getting water inside the softkey.
4.2.2 Pneumatic Pressure Checks
The following procedure requires the use of an Air Data Test Set. Connect the test set to the aircraft pitot
and static ports in accordance with test set manual and aircraft maintenance manual.
NOTE
If necessary, remove pitot and static lines to other equipment that could
be damaged during this procedure. Refer to the Aircraft Maintenance
Manual (AMM) for details.
