System Maintenance Manual

Page 4-12 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air
Revision F 190-00682-01
Table 4-6. Instrument Panel G1000 Equipment Visual Inspection Procedure
Item Description/Procedure Initials
Gain access to behind the instrument panel by removing the PFDs and MFD. Gain access to circuit breaker panels by removing
the screws which fasten then edgelit placards to the panels
GDU 1040A PFD
(Qty 2) & GDU 1500
MFD
a) Remove the MFD and PFDs as described in Section 6.
b) Inspect the mounting surface, copper bonding fingers and connector for corrosion,
heavy oxidation, or other damage. Check the integrity of the SHIELD BLOCK ground
attachments to the harness connector assembly as well as the integrity of the
individual shields and their attachment.
c) Inspect the CTL-62 unit and connector for corrosion or other defects. Check the
integrity of the SHIELD ground attachments to the harness connector assembly as
well as the integrity of the individual shields and
their attachment. Refer also to the
King Air Model 90 Series Maintenance Manual, listed in Table 1-2.
d) Do not reinstall GDUs at this time. GDU cutouts provide access for visual inspections
below.
G1000 Wiring
harness
a) Inspect all instrument panel wire harness for chafing, damage, proper routing of wire
bundles and security of attachment in accordance with AC 43.13-1B, Chapter 11,
Section 8, Paragraph 11-96 and the Cabin Wire Harness Routing drawing, listed in
Table 1-2.
b) Inspect all other exposed G1000 wiring for chafing, damage, proper routing of wire
bundles and security of attachment in accordance with AC 43.13-1B, Chapter 11,
Section 8, Paragraph 11-96 and the Cabin Wire Harness Routing drawing, listed in
Table 1-2.
c) Inspect all fwd bulkhead connectors for security of attachment
GDC 74B Air Data
Computer (Qty 2)
a) Visually inspect each GDC 74B unit, mount, and connector for corrosion or other
defects. Check the integrity of the SHIELD BLOCK ground attachments to the
harness connector assembly as well as the integrity of the individual shields and their
attachment.
b) Visually inspect the pitot/static plumbing and ensure it is secure and in good
condition.
GEA 71 Engine/
Airframe Unit (Qty 2)
a) Inspect the GEA 71 unit, rack, and connectors for corrosion or other defects. Check
the integrity of the SHIELD BLOCK ground attachments to the harness connector
assembly as well as the integrity of the individual shields and their attachment.
GMA 1347D (Qty 2)
a) Inspect the GMA 1347D unit, rack and connectors for corrosion or other defects.
Check the integrity of the SHIELD BLOCK ground attachments to the harness
connector assembly as well as the integrity of the individual shields and their
attachment.
PFD and MFD Fans
(Qty 3)
a) Inspect fans for accumulation of dirt and other damage. Remove excess dirt as
required.
GDL 69A
a) Inspect the GDL 69A unit, rack, and connectors for corrosion or other defects. Check
the integrity of the SHIELD BLOCK ground attachments to the harness connector
assembly as well as the integrity of the individual shields and their attachment.
GMC 710
a) Inspect the GMC 710 unit, mount, and connectors for corrosion or other defects.
Check the integrity of the SHIELD BLOCK ground attachments to the harness
connector assembly as well as the integrity of the individual shields and their
attachment.
Senior Aerospace
PC920 Signal Cond.
a) Inspect the PC920 unit, mount, and connectors for corrosion or other defects.
NOTE: Applicable only to STC SA01456WI-D, MDL 005-00375-30, Revision 4 and
previously approved revisions.
Sandia Aerospace
ST26 Adapter(Qty 2)
a) Inspect the ST26 unit, mount, and connectors for corrosion or other defects
NOTE: Applicable only to STC SA01456WI-D, MDL Revision 4 and previously approved
revisions.
VMI Signal
Conditioner (Qty 2)
a) Inspect the signal conditioner unit, mount, and connectors for corrosion or other
defects.
NOTE: Applicable only to STC SA01456WI-D, MDL 005-00375-30, Revision 5 and
subsequent approved revisions.