W DOC AIRBUS | AMM A320F

Installation of the Engine Interface Unit (EIU) [PW11]

TASK 73-25-34-400-802-A
Installation of the Engine Interface Unit (EIU)

ZONE: 210
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
1
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
824
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 52-41-00-010-002-A
Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A
Close the Avionics Compartment Doors after Access
TASK 73-25-34-710-802-A
Operational Test of the Engine Interface Unit (EIU) with the Centralized Fault Display System (CFDS)
TASK 73-25-34-860-805-A
Check and Uploading of the EIU Software
TASK 73-25-34-860-806-A
Engine Interface Unit (EIU) DISCRETE INPUTS Menu Data Status
TSM 73-25-01-810-846
No EIU 1 Response on the MCDU Screen at the Entry in the Interactive Mode
TSM 73-25-01-810-847
No EIU 2 Response on the MCDU Screen at the Entry in the Interactive Mode
F Engine Interface Unit (EIU)
3. Job Set-up
Subtask 73-25-34-010-058-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 access door 824 is open (Ref. AMM TASK 52-41-00-010-002).
Subtask 73-25-34-865-076-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUCOM/CVR/SPLY23RKE14
49VUCOM/CVR/CTL26RKE13
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUANTI ICE/RAIN/RPLNT/CAPT1DB1D01
** ON A/C NOT FOR ALL
49VURCDR1 CVR&FDR40TUE14
49VURCDR CTL41TUE13
** ON A/C NOT FOR ALL
121VURCDR/DFDR7TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK39
** ON A/C NOT FOR ALL
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/RAIN/RPLNT/F/O1DB2W11
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 AND 2/IGN/SYS A1JHA03
** ON A/C NOT FOR ALL
49VURCDR1 CVR&FDR40TUE14
49VURCDR CTL41TUE13
** ON A/C NOT FOR ALL
121VUENGINE/IGN/ENG1/SYS B3JH1P41
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK39
** ON A/C NOT FOR ALL
FOR FIN: 1KS2 (EIU2)
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
** ON A/C NOT FOR ALL
49VURCDR1 CVR&FDR40TUE14
49VURCDR CTL41TUE13
** ON A/C NOT FOR ALL
121VUENGINE/IGN/ENG2/SYS B3JH2P42
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK39
Subtask 73-25-34-865-098-A ** ON A/C NOT FOR ALL
WARNING: MAKE SURE THAT YOU OPEN THE CIRCUIT BREAKERS AS FOLLOWS:
  • 1JH AND 3JH1 BEFORE 2KS1
  • 1JH AND 3JH2 BEFORE 2KS2.
IF YOU DO NOT OBEY THIS SEQUENCE, THERE IS A RISK OF ELECTROCUTION. THIS IS BECAUSE YOU WILL START CONTINUOUS IGNITION IF YOU OPEN CIRCUIT BREAKER 2KS1 OR 2KS2 FIRST.
WARNING: MAKE SURE THAT THE PROBE HEATER AND WINDOW HEATER CIRCUIT-BREAKERS ARE OPEN BEFORE YOU OPEN THE PHC AND WHC CIRCUIT BREAKERS. IF YOU DO NOT OBEY THIS SEQUENCE:
  • THE PROBES WILL BECOME TOO HOT.
  • THIS CAN CAUSE INJURY TO MAINTENANCE PERSONNEL AND/OR DAMAGE TO EQUIPMENT.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/PHC/22DA2Y12
FOR FIN: 1KS1 (EIU1)
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
** ON A/C NOT FOR ALL
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
** ON A/C NOT FOR ALL
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R40
** ON A/C NOT FOR ALL
FOR FIN: 1KS2 (EIU2)
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FADEC B/AND EIU24KS2Q40
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FADEC B/AND EIU24KS2R41
4. Procedure
Subtask 73-25-34-420-054-A ** ON A/C NOT FOR ALL
A. Installation of the Engine Interface Unit (EIU)
   (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 nut (5) in the hook (4) and tighten them.
Subtask 73-25-34-860-123-A ** ON A/C NOT FOR ALL
B. Do a check and upload the EIU software.
NOTE: If the installed EIU is new or returned from the shop, there is a risk that no software is uploaded.
   (1) Do a check of the EIU software (Ref. AMM TASK 73-25-34-860-805).
     (a) If EIU 1(2) does not respond when you select it on the Multipurpose Control & Display Unit (MCDU) screen:
       1 Upload the EIU software (Ref. AMM TASK 73-25-34-860-805).
       2 Do a check of the EIU software again (Ref. AMM TASK 73-25-34-860-805).
       3 If EIU 1(2) does not respond when you select it on the MCDU screen:
         a For EIU 1, refer to the procedure TSM 73-25-01-810-846.
         b For EIU 2, refer to the procedure TSM 73-25-01-810-847.
     (b) If EIU 1(2) responds when you select it on the MCDU screen, make sure that EIU 1 and EIU 2 have the same operational software version.
You have to do the Line Replaceable Unit (LRU) identification on EIU 1 and EIU 2.
Subtask 73-25-34-865-099-A ** ON A/C NOT FOR ALL
WARNING: CLOSE THE CIRCUIT BREAKERS AS FOLLOWS:
  • 2KS1 BEFORE 1JH AND 3JH1
  • 2KS2 BEFORE 1JH AND 3JH2.
IF YOU DO NOT OBEY THIS SEQUENCE, YOU WILL START CONTINUOUS IGNITION AND THERE IS A RISK OF ELECTROCUTION.
WARNING: CLOSE THE CIRCUIT BREAKERS RELATED TO THE PHC AND CIRCUIT BREAKER 4KS1(2) BEFORE YOU CLOSE THE PROBE HEATER CIRCUIT-BREAKERS. IF YOU DO NOT OBEY THIS SEQUENCE:
  • THE PROBES WILL BECOME TOO 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
49VUANTI ICE/PROBES/PHC/12DA1D03
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/PHC/22DA2Y12
FOR FIN: 1KS1 (EIU1)
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
** ON A/C NOT FOR ALL
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
** ON A/C NOT FOR ALL
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R40
** ON A/C NOT FOR ALL
FOR FIN: 1KS2 (EIU2)
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FADEC B/AND EIU24KS2Q40
** ON A/C NOT FOR ALL
121VUENGINE/ENG2/FADEC B/AND EIU24KS2R41
Subtask 73-25-34-865-077-A ** ON A/C NOT FOR ALL
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUCOM/CVR/SPLY23RKE14
49VUCOM/CVR/CTL26RKE13
** ON A/C NOT FOR ALL
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUANTI ICE/RAIN/RPLNT/CAPT1DB1D01
** ON A/C NOT FOR ALL
49VURCDR1 CVR&FDR40TUE14
49VURCDR CTL41TUE13
** ON A/C NOT FOR ALL
121VURCDR/DFDR7TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK39
** ON A/C NOT FOR ALL
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/RAIN/RPLNT/F/O1DB2W11
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 AND 2/IGN/SYS A1JHA03
** ON A/C NOT FOR ALL
49VURCDR1 CVR&FDR40TUE14
49VURCDR CTL41TUE13
** ON A/C NOT FOR ALL
121VUENGINE/IGN/ENG1/SYS B3JH1P41
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK39
** ON A/C NOT FOR ALL
FOR FIN: 1KS2 (EIU2)
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
** ON A/C NOT FOR ALL
49VURCDR1 CVR&FDR40TUE14
49VURCDR CTL41TUE13
** ON A/C NOT FOR ALL
121VUENGINE/IGN/ENG2/SYS B3JH2P42
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK16
** ON A/C NOT FOR ALL
121VURCDR2 CVR&FDR42TUK39
Subtask 73-25-34-710-065-A ** ON A/C NOT FOR ALL
E. Test(s)
   (1) Do an operational test of the EIU with the Centralized Fault Display System (CFDS) (Ref. AMM TASK 73-25-34-710-802).
   (2) In case of a Landing Gear Control and Interface Unit (LGCIU) failure reported, do the troubleshooting of this failure before continuing the procedure.
   (3) Make sure that the EIU discrete inputs from the LGCIU are correct through the EIU discrete input menu data status (Ref. AMM TASK 73-25-34-860-806):
  • OIL LOW PRESS SW = 1
  • LHMLG COMP = 1
  • RHMLG COMP = 1.
If one of the previous discrete inputs is not correct, contact Airbus support.
5. Close-up
Subtask 73-25-34-410-054-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close access door 824 (Ref. AMM TASK 52-41-00-410-002).
   (3) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 03:03:26 UTC
"Aviabrain" 2025