Loss of the Altitude Reporting Function

TASK 34-52-00-810-813-A
Loss of the Altitude Reporting Function

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 34-52-00-810-807-A	Loss of the ADIRU Input Data to the ATC/MODE S Transponder 1
TSM TASK 34-52-00-810-808-A	Loss of the ADIRU Input Data to the ATC/MODE S Transponder 2
AMM 34-52-00-720-004	Functional Test of the Altitude Reporting Function
AMM 34-52-00-740-004	BITE Test of the ATC

3. Fault Confirmation
Subtask 34-52-00-720-050-A

A. Test
(1) Do the functional test of the altitude reporting function AMM 34-52-00-720-004.

4. Fault Isolation
Subtask 34-52-00-810-064-A

A. If the altitude information is not reported on the ATC ground test unit:

(1) If the BITE test gives the maintenance message ATC1 : NO DATA FROM ADIRU:

(2) If the BITE test gives the maintenance message ATC2 : NO DATA FROM ADIRU:

[Rev.8 from Aug 2018] 2026.04.04 04:33:23 UTC