Loss of the DME 1 Data on the ND

TASK 34-51-00-810-812-A
Loss of the DME 1 Data on the ND

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 34-51-00-720-001	Functional Test of the DME
AMM 34-51-00-740-002	BITE Test of the DME
ASM 345101
AMM 34-51-11-000-002	Removal of the DME Antenna
AMM 34-51-11-400-002	Installation of the DME Antenna
AMM 34-51-33-000-001	Removal of the DME Interrogator
AMM 34-51-33-400-001	Installation of the DME Interrogator

3. Fault Confirmation
Subtask 34-51-00-720-050-A

A. Test
(1) Do the functional test of the DME AMM 34-51-00-720-001.

4. Fault Isolation
Subtask 34-51-00-810-063-A

A. If the DME 1 data do not come into view on the ND:

(1) If the test gives a maintenance message:

(2) If the test does not give a maintenance message:

(a) If the fault continues:

1 If the fault continues:

do a check and repair the wiring from the DME antenna 1 (3SD1) to the DME interrogator 1 (2SD1) ASM 345101.

Subtask 34-51-00-720-051-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:40:27 UTC