W DOC AIRBUS | AMM A320F

Operational Test of the Throttle Control Unit [IAE]

TASK 76-11-00-710-040-A
Operational Test of the Throttle Control Unit

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
SAFETY CLIP - CIRCUIT BREAKER
 B. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
F Upper Display Unit of the Ecam System EPR Indication
3. Job Set-up
Subtask 76-11-00-861-050-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002)
Subtask 76-11-00-869-050-A ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) Do the EIS start procedure (upper ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
   (2) On the panel 50VU, make sure that the ENG FADEC GND PWR 1 and 2 pushbutton switches are released (ON legends come on).
Subtask 76-11-00-865-050-A ** ON A/C NOT FOR ALL
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 8KS1 (CTL UNITTHROTTLE, ENG 1)
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
FOR FIN: 8KS2 (CTL UNITTHROTTLE, ENG 2)
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
121VUENGINE/ENG2/FADEC B4KS2Q40
Subtask 76-11-00-865-068-A ** ON A/C NOT FOR ALL
WARNING: MAKE SURE THAT YOU OPEN THE CIRCUIT BREAKERS AS FOLLOWS:
  • 1JH, 2JH2 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 2KS2 FIRST.
WARNING: OPEN THE ANTI-ICE PROBE CIRCUIT BREAKERS BEFORE YOU OPEN CIRCUIT BREAKERS 2KS1 AND 2KS2. IF YOU DO NOT OBEY THIS SEQUENCE, THE PROBES CAN BECOME HOT. THIS CAN CAUSE INJURY TO THE PERSONS WHO ARE NEAR THEM.
WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
D. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PHC/12DA1D03
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUANTI ICE/RAIN/RPLNT/CAPT1DB1D01
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/RAIN/RPLNT/F/O1DB2W11
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/PHC/22DA2Y12
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: 8KS1 (CTL UNITTHROTTLE, ENG 1)
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
FOR FIN: 8KS2 (CTL UNITTHROTTLE, ENG 2)
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
4. Procedure
Subtask 76-11-00-710-050-A ** ON A/C NOT FOR ALL
A. Do this test:
ACTION
RESULT
1.Move the ENG1 (ENG2) throttle control levers and make sure that the small white circle (THR REFERENCE) on the EPR indication follows the throttle position on the upper ECAM DU.

2.Open circuit breakers 2KS1 and 2KS2.
- The EPR analog indication and the circle go out of view.
- The EPR digital indication is replaced by amber crosses.
- A message is displayed on the upper ECAM DU:
ENG 1 FADEC A FAULT
ENG 2 FADEC A FAULT.
NOTE: Ignore the Thrust Limit Mode indication in the upper right part of the ECAM DU.
3.Move the ENG1 (ENG2) throttle control levers and make sure that the thrust limit mode indication and the EPR value limit follow the throttle position on the upper ECAM DU.

4.Close circuit breakers 2KS1 and 2KS2.
On the upper ECAM DU, the engine main parameters are in the normal configuration.
Open circuit breakers 4KS1 and 4KS2.
On the upper ECAM DU, the messages that follow come into view:
-ENG1 FADEC B FAULT
-ENG2 FADEC B FAULT.
NOTE: Ignore the Thrust Limit Mode indication in the upper right part of the ECAM DU.
5.Move the ENG1 (ENG2) throttle control levers and make sure that the small circle (THR REFERENCE) (white for EIS1 or blue for EIS2) on the EPR indication follows the throttle position on the upper ECAM DU.

6.Close circuit breakers 4KS1 and 4KS2.
On the upper ECAM DU:
The ENG1 FADEC B FAULT message goes out of view.

The ENG2 FADEC B FAULT message goes out of view.
NOTE: If circuit breakers 4KS1 and 4KS2 stay open after 1 minute, this message shows on the upper ECAM DU: C/B TRIPPED REAR PNL N-R.

5. Close-up
Subtask 76-11-00-869-051-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
   (1) On the panel 50VU, release the ENG FADEC GND PWR 1 and 2 pushbutton switches (ON LEGENDS GOES OFF).
   (2) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
   (3) Make sure that the work area is clean and clear of tools and other items.
Subtask 76-11-00-862-050-A ** ON A/C NOT FOR ALL
B. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
Subtask 76-11-00-865-069-A ** ON A/C NOT FOR ALL
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/1 AND 2/IGN/SYS A1JHA03
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PHC/12DA1D03
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUANTI ICE/RAIN/RPLNT/CAPT1DB1D01
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/RAIN/RPLNT/F/O1DB2W11
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/PHC/22DA2Y12
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: 8KS1 (CTL UNITTHROTTLE, ENG 1)
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
FOR FIN: 8KS2 (CTL UNITTHROTTLE, ENG 2)
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
[Rev.10 from 2021] 2026.04.01 13:09:27 UTC
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