Incorrect Location of the TCAS Intruders on the NDs

TASK 34-43-00-810-831-A
Incorrect Location of the TCAS Intruders on the NDs

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ESPM 2052230
AMM 34-43-00-720-001	Functional Test of the TCAS Antennas
AMM 34-43-11-000-001	Removal of the TCAS Antenna
AMM 34-43-11-400-001	Installation of the TCAS Antenna

3. Fault Confirmation
Subtask 34-43-00-720-052-A

A. Test
(1) Do the functional test of the TCAS antennas AMM 34-43-00-720-001.

4. Fault Isolation
Subtask 34-43-00-810-083-A

A. If the test of one TCAS antenna shows that the location of the TCAS intruders on the NDs is incorrect:

(1) If there is moisture:

(2) If there is no moisture (if the connectors are clean and in the correct condition):
(a) Make sure that:

The connectors are in the correct position
The antenna is in the correct position
AMM 34-43-11-400-001.
Repair if necessary.

(b) Do a check and repair the coaxial cables ESPM 2052230.
(3) If the fault continues:

Replace the ANTENNA-TCAS, TOP [7SG1] or ANTENNA-TCAS, BOTTOM [7SG2]
AMM 34-43-11-000-001 and AMM 34-43-11-400-001.

Subtask 34-43-00-720-053-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:33:13 UTC