Difference between the Initial and the Current ADR 1 SDI Code

TASK 34-13-81-810-846-A
Difference between the Initial and the Current ADR 1 SDI Code

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 341201
AMM 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU
AMM 34-13-00-740-003	SYSTEM TEST of the ADR
AMM 34-13-00-740-005	Read the CFDIU for the ADR INPUT STATUS

3. Fault Confirmation
Subtask 34-13-81-740-113-A ** ON A/C NOT FOR ALL

A. Test
Do the system test of the ADR 1 AMM 34-13-00-740-003

4. Fault Isolation
Subtask 34-13-81-810-098-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message WRG:SDI PIN PROG:

read the CFDIU for the CURRENT STATUS of the ADR1 AMM 34-13-00-740-005.
compare the CURRENT STATUS of the ADR 1 with the status of the SDI pin programming pins AB/1A, 5A, 6A given in the ASM ASM 341201.
remove the ADIRU-1 [1FP1] AMM 34-12-34-000-001
do a check of the defective pin(s) on the rack connector.

(1) If the pin programming is incorrect:

(2) If the pin programming is correct:

Subtask 34-13-81-740-114-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:36 UTC