Maintenance Intervals; Table 4-1 Maintenance Intervals - Garmin GTX 330D Maintenance Manual

4.4 Maintenance Intervals

Table 4-1 shows systems and components, installed by this STC, which must undergo tests or checks at
specific intervals. The inspections based on calendar elapsed time have specifically stated intervals.
NOTE
The maintenance intervals listed in the table below must be adhered to for each installed
GTX.
Item
Equipment Removal
and Reinstallation
Cleaning
Antenna Visual
Inspection
Lightning Strike -
Actual or Suspected
Testing
Equipment Visual
Inspection
Testing
Electrical Bonding Test
190-00734-11
Rev. 6

Table 4-1 Maintenance Intervals

Description/Procedure
Removal and reinstallation of GTX
LRUs.
The GTX 330 and GTX 335/345
display and bezel may be cleaned
periodically.
Cleaning is accomplished using a soft
cotton cloth dampened with clean
water.
DO NOT use any chemical cleaning
agents. Avoid scratching the surface of
the display.
Removal and replacement.
Inspect the coaxial cable connections,
GTX bonding hardware (including
bonding straps and tape), antenna,
and surrounding areas.
The GTX 33/330 and GTX 3X5
receiver sensitivity must be tested and
shown to comply with Title 14 CFR
Part 43 Appendix F.
The GTX 33/330 and GTX 3X5 must
be tested and shown to comply with
Title 14 CFR Part 91.227.
A visual inspection of the equipment
installed by this STC must be
performed.
The GTX 33/330 and GTX 3X5 must
be tested and shown to comply with
Title 14 CFR Part 91.411, 91.413, and
Part 43 Appendix E and F.
An electrical bonding test must be
performed on equipment installed by
this STC.
GTX 33X and GTX 3X5 ADS-B Maintenance Manual
Section No. Interval
6
On Condition
N/A
On Condition
4.5
On Condition
4.5
On Condition
8.6
On Condition
Replacement of GPS
8.7
Position source(s).
4.5
12 Calendar Months
Refer to Title 14 CFR
Part 91.411, 91.413,
8.6
and Part 43 Appendix
E and F.
4.6
10 Years or 2000 hours
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