W DOC AIRBUS | AMM A320F

Installation of the Engine Interface Unit (EIU) [CFMI]

TASK 73-25-34-400-040-A
Installation of the Engine Interface Unit (EIU)

FIN: 1KS1 ** ON A/C NOT FOR ALL
FIN: 1KS2 ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
824
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 52-41-00-410-002-A
Close the Avionics Compartment Doors after Access
TASK 73-25-34-710-040-A
Operational Test of the Engine Interface Unit
F Engine Interface Unit
3. Job Set-up
Subtask 73-25-34-010-053-A ** ON A/C NOT FOR ALL
A. Get Access
   (1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position
   (2) make sure that the access door 824 is open
Subtask 73-25-34-865-056-A ** ON A/C NOT FOR ALL
WARNING: OPEN THE PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3) BEFORE ENG1(2)FADEC A and EIU 1(2) C/B'S 2KS1 AND 2KS2. IF YOU DO NOT OBEY THIS SEQUENCE:
  • THE PROBES WILL BECOME TOO HOT.
  • THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
WARNING: OPEN CIRCUIT BREAKERS 2KS1 AND 2KS2 AFTER YOU OPEN THE IGNITION CIRCUIT BREAKERS. IF NOT, THE CONTINUOUS IGNITION SYSTEM WILL BE ACTIVATED.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUCOM/CVR/SPLY2RKE14
49VUCOM/CVR/CTL4RKE13
121VURCDR/DFDR7TUK16
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/1/TAT1DA1Z12
FOR FIN: 1KS1 (EIU1)
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
FOR FIN: 1KS2 (EIU2)
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
121VUENGINE/ENG2/FADEC B4KS2Q40
4. Procedure
Subtask 73-25-34-420-051-A ** ON A/C NOT FOR ALL
A. Installation of the Engine Interface Unit:
   (1) Remove the blanking caps and make sure that the electrical connectors (6) and (7) are in good condition.
   (2) Put the engine interface unit (1) in its support (2).
   (3) Push the engine interface unit (1) with the handle (3) until the connector (6) engages correctly.
   (4) Engage the knurled nuts (5) in the hooks (4) and tighten them.
Subtask 73-25-34-942-052-A ** ON A/C NOT FOR ALL
B. Make sure that the work area is clean and clear of tools and other items.
Subtask 73-25-34-865-057-A ** ON A/C NOT FOR ALL
WARNING: CLOSE THE CIRCUIT BREAKERS 2KS1, 2KS2 AND 4KS1, 4KS2 BEFORE YOU CLOSE THE ANTI-ICE/PROBES CIRCUIT BREAKERS 1DA1 (2), 3DA1 (2,3), 4DA1 (2,3) AND 5DA1 (2,3). IF YOU DO NOT OBEY THIS SEQUENCE, THE PROBES CAN BECOME HOT. THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUCOM/CVR/SPLY2RKE14
49VUCOM/CVR/CTL4RKE13
121VURCDR/DFDR7TUK16
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
121VUENGINE/ENG2/FADEC B4KS2Q40
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/1/TAT1DA1Z12
Subtask 73-25-34-710-059-A ** ON A/C NOT FOR ALL
D. Do an operational test of the Engine Interface Unit (Ref. AMM TASK 73-25-34-710-040).
5. Close-up
Subtask 73-25-34-410-051-A ** ON A/C NOT FOR ALL
A. Close the access door 824. (Ref. AMM TASK 52-41-00-410-002)
Subtask 73-25-34-942-053-A ** ON A/C NOT FOR ALL
B. Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 02:57:07 UTC
"Aviabrain" 2025