Disagree between Data Received from the LGCIU 2

TASK 73-25-00-810-872-A
Disagree between Data Received from the LGCIU 2

1. Possible Causes

EIU-2 [1KS2]
LGCIU-2 [5GA2]
wiring from the pins AA/5D, 5E of the EIU-2 (1KS2) to the pins AB/3G, 3K of the LGCIU 2 (5GA2)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-31-71-000-001	Removal of the LGCIU
AMM 32-31-71-400-001	Installation of the LGCIU
ASM 732516
AMM 73-25-34-000-040	Removal of the Engine Interface Unit (EIU)
AMM 73-25-34-400-040	Installation of the Engine Interface Unit (EIU)

3. Fault Confirmation
Subtask 73-25-00-710-204-A ** ON A/C NOT FOR ALL

A. Not applicable.

4. Fault Isolation
Subtask 73-25-00-810-127-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message CHECK LGCIU 2 L/G COMP SIGNALS (DISAGREE):

(1) If the fault continues:

(2) If the fault continues:

do a check and repair the wiring from the pins AA/5D, 5E of the EIU-2 (1KS2) to the pins AB/3G, 3K of the LGCIU 2 (5GA2) ASM 732516.

Subtask 73-25-00-710-205-A ** ON A/C NOT FOR ALL

B. Test
(1) During the subsequent engine start make sure that:

(2) After a subsequent flight make sure that the maintenance message is no more present.

[Rev.8 from Aug 2018] 2026.04.04 04:35:45 UTC