G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air Page 4-11
190-00716-01 Revision 4
4.4 Visual Inspection
Perform a visual inspection in accordance with requirements in Table 4-1. Check for corrosion, damage,
or other defects for each of the items listed in Table 4-3 through Table 4-8. 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 Super King Air 300
or B300 Maintenance Manual listed in Table 1-2 for instructions on removing any access panels.
NOTE
It is recommended that the Phase 3 and Phase 4 electrical bonding checks contained in section 4.5 are
conducted after the Phase 3 and 4 visual inspections while access to these zones is still open.
Table 4-3, Nose Section Visual Inspection Procedure
Item Description/Procedure Initials
Gain access via the Radome for the following Inspection:
GWX 68 or GWX 70
a) Inspect the GWX 68 or GWX 70 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.
b) Inspect 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 Nose Wire Harness Routing drawing, listed in Table 1-2
.
Table 4-4, Nose Avionics Compartment Visual Inspection Procedure
Item Description/Procedure Initials
Gain access via the Nose Equipment Compartment access panel for the following Inspection:
GRS 77 or GRS
7800 (Qty 2)
a) Inspect the GRS 77 or GRS 7800 units, racks, 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.
GIA 63W (Qty 2)
a) Inspect the GIA 63W units, racks, 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.
Standby Battery
a) Inspect the standby battery, rack and connectors for corrosion, or other defaults.
b) Inspect the standby battery fuses and associated bracket for corrosion or other
defects.
GIA Cooling Fan
(Qty 2)
a) Inspect remote cooling fans and hoses for dirt accumulation and other damage.
Remove excess dirt as required.
GTS 820/850 Traffic
or GTS Traffic
Processor
(option)
a) Inspect the GTS 820/850 or GTS Traffic Processor unit (if installed), 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.
LMD Rack and
Modules
a) Inspect the LMD rack, modules, and terminations for corrosion or other defects.
Nose Wiring harness
a) Inspect bulkhead connectors for security of attachment, corrosion or other defects.
b) Inspect wire and coax 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 Nose Wire Harness Routing drawing, listed in Table 1-2. .
Pay particular attention to possible areas of chaffing such as the middle shelf feed-
through hole, wheel well protrusion etc.
c) Inspect Ground blocks for security of attachment, corrosion or other defects.
d) Ensure all connectors are securely fastened.
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