BI BUMP OPTION FAULT on EIU-1

TASK 73-25-00-810-B39-A
BI BUMP OPTION FAULT on EIU-1

1. Possible Causes

EIU-1 [1KS1]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 73-25-34-000-802	Removal of the Engine Interface Unit (EIU)
AMM 73-25-34-400-802	Installation of the Engine Interface Unit (EIU)
AMM 73-25-34-710-802	Operational Test of the Engine Interface Unit (EIU) with the Centralized Fault Display System (CFDS)

3. Fault Confirmation
Subtask 73-25-00-710-578-A ** ON A/C NOT FOR ALL

A. Do the operational test of the Engine Interface Unit (EIU-1) (1KS1) with the Centralized Fault Display System (CFDS) to confirm this fault. Refer to AMM 73-25-34-710-802.

4. Fault Isolation
Subtask 73-25-00-810-462-A ** ON A/C NOT FOR ALL

A. Do as follows:
(1) Replace EIU-1 [1KS1] AMM 73-25-34-000-802 and AMM 73-25-34-400-802.
(a) Do the test given in Para. 3.

5. Close-up
Subtask 73-25-00-860-184-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.

[Rev.8 from Aug 2018] 2026.04.04 04:36:51 UTC