Garmin SA01456Wi_D Manual download pdf (Page 94)

Page 4-10 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air

Revision F 190-00682-01

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 King Air Model 90

Series 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

a) Inspect the GWX 68 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 (Qty 2)

a) Inspect the GRS 77 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.

GTX 33 (Qty 2)

a) Inspect the GTX 33 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)

1. 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.

GIA Avionics Fan

(Qty 2)

a) Inspect remote avionics fans and hoses for dirt accumulation and other damage.

Remove excess dirt as required.

LMD Rack and

Modules

a) Inspect the LMD rack, modules, and termination 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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