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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
May 14/14
Page 3-4
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-511-5,
Basic Weight and Balance Record, as required (reference Enstrom 480B
Series Maintenance Manual).
3.4
System Maintenance – GDL 69AH
3.4.1
Scheduled Maintenance
The GDL 69AH is subject to conditional maintenance with the exception described in
Section 7 of the G1000H Integrated Avionics System Standard Maintenance Manual.
3.4.2
Removal
A. Remove power to the GDL 69AH and the PFD. Pull the XM DL and PFD circuit
breakers out. Disable the circuit breakers by installing a cable tie or other similar
device around the circuit breaker stem.
B. Access the GDL 69AH by removing the PFD (para. 1.5.1.2).
C. Loosen the install screw.
D. Pull the GDL outward and up at least .34 inch. This disengages and clears the
retaining wedges for removal.
E. Remove unit out of the rack.
3.4.3
Installation
A. Inspect rack connectors for damaged pins before installing the unit.
B. Locate unit on rack. Lift unit up .34 inch to clear rack mounting hardware and align
with retaining wedges.
C. Tighten installation screw to 15 +/- 2 in-lbs.
D. Reinstall the PFD (para. 1.5.1.3).
E. Remove the cable tie or other similar device from the XM DL and PFD circuit
breaker stem and push the stem in to set the circuit breaker.
F. Perform the GDL 69AH testing procedure in accordance with Section 6 of the
G1000H Integrated Avionics System Standard Maintenance Manual.
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