Page 5-3 Maintenance TQG191-IM
Rev 0: 28 Feb 2019
5.4 RETURN TO SERVICE
Use this procedure to remove and replace the KTX2. The instructions herein are generic in
scope. The best established methods, techniques and practices should be used where no
specific procedure is given.
1. Removal Procedure
a. Ensure power to the unit is off;
b. Remove mating connector P1;
c. Disconnect L-Band antenna coax;
d. Disconnect Static Line;
e. Loosen (4) screws;
f. Remove the unit from aircraft.
2. Installation Procedure
a. Ensure aircraft power is off;
b. Connect mating connector P1;
c. Connect Static Source;
d. Connect UAT L-Band coax;
e. Carefully place the unit in aircraft;
f. Secure the unit using (4) screws.
3. Functional Check Procedure
a. Apply power to the unit and system components;
b. Ensure no failure messages are annunciated on the display;
c. Perform the checkout procedure provided in paragraph 4.5 to verify unit is
functioning correctly;
d. Refer to the fault isolation section if errors are detected.
5.5 DISPOSITION OF FAILED ITEMS
1. The KTX2 can only be repaired by TQ-Group or an FAA Certified Repair
Station Facility. For further information on your nearest authorized repair facility
see the TQ-Group General Aviation website at:
https://www.tq-general-aviation.com/en/Service
2. Refer to the manufacturer’s data for GPS sources and antennas interfaced to the KTX2.
3. If available, pack components in their original shipping container. If the original container
is not available, pack them as follows:
a. Ensure that conductive covers/caps are installed on the exposed terminals of
connector, if applicable.
b. LRU's that are marked as electrostatic discharge sensitive (ESDS) must be
wrapped in static protective materials.
c. Wrap with bubble pack. Secure bubble pack with reinforced tape.
d. Place assembly in a cardboard box.
e. Wrap any accessories in tissue and place in the box. Fill spaces with bubble
pack.
f. Place an explanation letter in the box with the following information.
• Your name, address, and telephone number.
• Purchase order number.
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