Visual Inspection - Garmin GTX 330 System Maintenance Manual

4.5

VISUAL INSPECTION

Perform a visual inspection in accordance with requirements in Table 4. Check for corrosion, damage, or
other defects for each of the installed items. 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 A 2 of this manual for equipment locations and refer
to the specific aircraft Maintenance Manual for instructions on removing any access panels.
GTX 330/330D Visual Inspection
During normal aircraft inspections not to exceed 12 calendar month intervals, conduct a visual inspection
of the GTX 330/330D installation in the following locations:
Instrument Panel
1) Inspect all GTX 330/330D knobs and buttons for legibility of labels and markings.
2) Inspect GTX 330/330D units for security of attachment.
3) Inspect mounting rack and hardware for integrity.
a. Verify the racks, fasteners, and support structure are in good condition and are securely fastened.
b. Inspect for signs of corrosion.
c. For composite aircraft, inspect any aluminum foil tape used to ground the GTX and verify that it
is not torn, damaged or showing signs of corrosion. If any of these occurs then the tape must be
replaced.
4) Inspect any bonding straps for corrosion, loose connections, or signs of damage.
5) Inspect the condition of the wiring harnesses and coaxial cables.
a. Inspect all instrument panel wiring 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. Pay particular attention to possible areas of chaffing.
b. Verify that the harness shows no signs of cracking, chaffing, abrasion, melting, or any other form
of damage.
Inspect the GTX 330/330D connectors for corrosion or other defects. Check the integrity of the
c.
shield block ground attachments to the harness connector assembly as well as the integrity of the
individual shields and their attachment.
GTX 33/33D Visual Inspection
During normal aircraft inspections not to exceed 12 calendar month intervals, conduct a visual inspection
of the GTX 33/33D installation in the following locations:
Remote Mount Rack
1) Inspect GTX 33/33D units for security of attachment.
2) Inspect mounting rack and hardware for integrity.
a. Verify the racks, fasteners, and support structure are in good condition and are securely fastened.
b. Inspect for signs of corrosion.
c. For composite aircraft, inspect any aluminum foil tape used to ground the GTX and verify that it
is not torn, damaged or showing signs of corrosion. If any of these occurs then the tape must be
replaced.
GTX 330/33 with ADS-B Out
Maintenance Manual with ICA
The document reference is online, please check the correspondence between the online documentation and the printed version.
4-4
190-00734-11
Rev. 1