Failure of one TR found by the CFDIU

TASK 24-30-00-810-809-A
Failure of one TR found by the CFDIU

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 243502
AMM 31-32-00-740-002	BITE Test of the Centralized Fault Display Interface Unit (CFDIU)
ASM 313206

3. Fault Confirmation
Subtask 24-30-00-740-050-A

A. Test
Do the BITE test of the CFDIU AMM 31-32-00-740-002.

4. Fault Isolation
Subtask 24-30-00-810-058-B

A. If the test gives the message TR:

do a check for other CFDS messages or warnings related to the DC main generator system (TR) on the upper ECAM display unit.

(1) If there are other messages or warnings:

(2) If there is no message and no warning:

do a check and repair the wiring between:
. the pin A/A1 of the relay (8PC1) and the pin AA/1J of the CFDIU (1TW).
. the pin A/A1 of the relay (8PC2) and the pin AB/5A of the CFDIU ASM 243502 and ASM 313206.

Subtask 24-30-00-740-051-A

B. Do the test given in Para.3.

[Rev.8 from Aug 2018] 2026.04.04 04:26:45 UTC