Display of Incorrect Ground Station Identification Codes on the NDs

TASK 34-51-00-810-833-A
Display of Incorrect Ground Station Identification Codes on the NDs

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 34-51-00-810-823-A	Loss of the DME Antenna 1 Signals
TSM TASK 34-51-00-810-828-A	Loss of the DME Antenna 2 Signals
AMM 34-51-00-720-001	Functional Test of the DME

3. Fault Confirmation
Subtask 34-51-00-710-054-A

A. Not applicable, you cannot confirm this fault on the ground.

4. Fault Isolation
Subtask 34-51-00-810-090-B

A. If the fault symptom is identified by the crew observation, incorrect identification codes shown on the NDs:

do the functional test of the DME AMM 34-51-00-720-001.

(1) If the test is OK:

no maintenance action is required.

NOTE: The display of incorrect identification codes on the NDs can result from a bad transmission from the ground station.

(2) If the test is not OK:

refer to the procedures (Ref. TSM TASK 34-51-00-810-823) and (Ref. TSM TASK 34-51-00-810-828).

[Rev.8 from Aug 2018] 2026.04.04 04:33:21 UTC