Maintenance Intervals; Table 4. Maintenance Intervals - Garmin GTX 330 System Maintenance Manual

•
Calibrated pitot/static ramp tester
•
Outdoor line-of-site to GPS satellite signals or GPS indoor repeater
•
Ground Power Unit (Capable of supplying aircraft power)
4.4

MAINTENANCE INTERVALS

Table 4 shows systems and items, installed by this STC, which must undergo tests or checks at specific
intervals. Those inspections that are based on calendar elapsed time shall have specific intervals stated in
Table 4.
NOTE
The maintenance intervals listed in the table below must be adhered to for each
installed GTX.
Item
Equipment Removal
& Reinstallation
Testing
Cleaning
Testing
Equipment Visual
Inspection
Electrical Bonding
Test
Antenna Visual
Inspection
Electrical Bonding
Test
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.

Table 4. Maintenance Intervals

Description/Procedure
Removal and reinstallation of GTX LRUs
The GTX 330/33 transponders must be tested
and shown to comply with Title 14 CFR Part
91.225 and 91.227.
The GTX 330 display and bezel may be
cleaned periodically when required.
Cleaning can be accomplished using a soft
cotton cloth dampened with clean water.
DO NOT use any chemical cleaning agents.
Care should be taken to avoid scratching the
surface of the display.
The GTX 330/33 transponders must be tested
and shown to comply with Title 14 CFR Part
91.411, 91.413, 91.225, 91.227 and Part 43
Appendix E and F.
A visual inspection of the equipment installed
by this STC must be performed.
An electrical bonding test must be performed
on equipment installed by this STC.
Removal and replacement
Lightning Protection
Perform the electrical bonding resistance check
Section No.
6
8.4
N/A
8.4
4.5
4.6
4.5
4.6
4-2
Interval
On Condition
Replacement of GPS
Position source(s).
On Condition
24 Calendar Months
12 Calendar Months
10 Years or 2000 hours
On Condition
On Condition
190-00734-11
Rev. 1