Garmin Diamond DA40, Maintenance Manual

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G1000/DA 40 System Maintenance Manual Page 4-5
190-00303-03 Revision 6
4.5 1000 Hour Inspection
Perform a visual inspection every 1000 airframe hours and check for corrosion, damage, or other defects
for each of the items listed in Table 4-2. Replace any damaged parts as required. Inspection may require
the temporary removal of a unit or units to gain access to connectors. Follow guidance in Section 6 for
equipment removal and replacement. Refer to the Diamond DA 40 Airplane Maintenance Manual for
instructions on removing any access panels.
Table 4-2. 1000 Hour Inspection Procedure
Item Description/Procedure Initials
To gain access for the following inspections:
1. Remove the instrument panel cover as described in the DA 40 Aircraft Maintenance Manual.
GDC 74A Air Data
Computer
a) Visually inspect the GDC 74A unit, mount, and connector for corrosion or other
defects.
b) Ensure that pitot/static plumbing is secure and in good condition.
GEA 71
Engine/Airframe Unit
a) Inspect the GEA 71 unit, rack, and connectors for corrosion or other defects.
Battery & Alternator
Voltage Suppressors
(2)
a) Inspect both voltage suppressors and associated wiring for cracks, chaffing, or other
defects.
b) Remove each voltage suppressor fuse and inspect the fuse filament. Ensure that the
fuse is in good condition.
CDU Fans
a) Inspect both CDU fans for accumulation of dirt and other damage. Remove excess
dirt as required.
b) Ensure that both fans are operational.
GDU 1040 MFD &
PFD
a) Remove the MFD and PFD as described in Section 6.
b) Inspect the mounting surface, copper bonding fingers and connector for corrosion,
heavy oxidation, or other damage.
c) Reinstall the MFD and PFD.
To gain access for the following Inspections:
1. Remove rear baggage compartment floor.
2. Remove baggage compartment shell.
Refer to the DA 40 Aircraft Maintenance Manual for removal instructions.
GRS 77
a) Inspect the GRS 77 unit, rack, and connector for corrosion or other defects.
b) Inspect both braided ground straps to the GRS rack and ensure they are in good
condition.
Remote Avionics
Enclosure
a) Inspect the outer area around the enclosure for damage.
b) Inspect the antenna connection junction.
c) Inspect the aluminum ground strap.
d) Inspect the GIA/AHRS voltage suppressors, resistors, and fuses mounted to the front
of the enclosure (refer to Section 2.5 for drawings):
i.
Inspect each voltage suppressor and associated wiring for cracks, chaffing,
or other defects.
ii. Remove each voltage suppressor fuse and inspect the fuse filament.
Ensure that each fuse is in good condition.
iii. Inspect each lightning protection resistor and associated wiring for cracks,
chaffing, or other defects.
e) Loosen the screws securing the top half of the avionics enclosure.
f) Remove the top half of the enclosure and inspect the bottom mounting tray and all
connectors.
g) Reinstall the top avionics enclosure.