Failure of the CFDIU Detected by the LGCIU 1

TASK 31-32-00-810-903-A
Failure of the CFDIU Detected by the LGCIU 1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 313204
AMM 31-32-34-000-001	Removal of the CFDIU
AMM 31-32-34-400-001	Installation of the CFDIU
AMM 32-69-00-740-001	BITE Check of Landing-Gear Control Interface-Unit (LGCIU) With Use of MCDU to Ensure that Continuous BITE is Operative

3. Fault Confirmation
Subtask 31-32-00-740-252-A

A. Test
Do the BITE test of the landing gear AMM 32-69-00-740-001.

4. Fault Isolation
Subtask 31-32-00-810-153-A

A. If the test gives the maintenance message LGCIU1 : NO DATA FROM CFDS:

(1) If the fault continues:

do a check and repair the wiring from the CFDIU (1TW) pins AA/11F, 11G to the first terminal block ASM 313204.

Subtask 31-32-00-740-253-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:29:57 UTC