All engine 1 parameters are not XX on the upper ECAM DU 5 minutes minimum after an engine shutdown on the ground

TASK 73-29-00-810-804-A
All engine 1 parameters are not XX on the upper ECAM DU 5 minutes minimum after an engine shutdown on the ground

1. Possible Causes

wiring between the ENG/MASTER CTL switch (3KC) and the EIU 1 (1KS1)
CTL SW-ENG/MASTER 1 [3KC]
EIU-1 [1KS1]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ESPM 2045210
ASM 732508
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)
AMM 73-25-34-710-040	Operational Test of the Engine Interface Unit
AMM 73-25-34-710-043	Operational Test of the Engine Interface Unit

3. Fault Confirmation
Subtask 73-29-00-710-056-A ** ON A/C NOT FOR ALL

A. Test
(1) Make sure that the engine 1 shutdown time was of 5 minutes minimum.
(2) Do the operational test of the Engine Interface Unit AMM 73-25-34-710-040.

Subtask 73-29-00-710-056-B ** ON A/C NOT FOR ALL

A. Test
(1) Make sure that the engine 1 shutdown time was of 5 minutes minimum.
(2) Do the operational test of the Engine Interface Unit AMM 73-25-34-710-043.

4. Fault Isolation
Subtask 73-29-00-810-056-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message 115VU (MASTER LEVER 1SW):

do a check and repair the wiring between the ENG/MASTER CTL switch (3KC) and the EIU 1 (1KS1), ASM 732508.

(1) If the fault continues:
(a) Replace the CTL SW-ENG/MASTER 1 [3KC] ESPM 2045210.
(b) Do the operational test of the Engine Interface Unit AMM 73-25-34-710-040.
(2) If the fault continues:

replace the EIU-1 [1KS1] , AMM 73-25-34-000-040 and AMM 73-25-34-400-040.

Subtask 73-29-00-810-057-A ** ON A/C NOT FOR ALL

B. If the test gives NO FAILURE message:

replace the EIU-1 [1KS1] , AMM 73-25-34-000-040 and AMM 73-25-34-400-040.

[Rev.8 from Aug 2018] 2026.04.04 04:35:51 UTC