DOC AIRBUS | AMM A320FOperational Test of the Throttle Control Unit [CFMI]
TASK 76-11-00-710-802-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
B. Referenced Information
3. Job Set-up
Subtask 76-11-00-861-052-A ** ON A/C NOT FOR ALL Subtask 76-11-00-869-075-A ** ON A/C NOT FOR ALL
4. Procedure
Subtask 76-11-00-710-057-A ** ON A/C NOT FOR ALL
Subtask 76-11-00-865-076-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:09:19 UTC
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 |
| 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 27-96-00-740-001-A | BITE Test of the EFCS (Ground Scanning) |
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
Subtask 76-11-00-861-052-A ** ON A/C NOT FOR ALL Subtask 76-11-00-869-075-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 76-11-00-865-074-A ** ON A/C NOT FOR ALL (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).
C. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 76-11-00-865-075-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 8KS1 (CTL UNITTHROTTLE, ENG 1) | |||
| 49VU | ENGINE/1/FADEC A/AND EIU 1 | 2KS1 | A04 |
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R41 |
| FOR FIN: 8KS2 (CTL UNITTHROTTLE, ENG 2) | |||
| 49VU | ENGINE/2/FADEC A/AND EIU 2 | 2KS2 | A05 |
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
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. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ANTI ICE/PROBES/AOA/1 | 4DA1 | D04 |
| 49VU | ANTI ICE/PROBES/PHC/1 | 2DA1 | D03 |
| 49VU | ANTI ICE/PROBES/PITOT/1 | 3DA1 | D02 |
| 122VU | ANTI ICE/WINDOWS/R | 4DG2 | W14 |
| 122VU | ANTI ICE/WINDOWS/L | 4DG1 | X14 |
| 122VU | ANTI ICE/PROBES/PHC/3 | 2DA3 | Y16 |
| 122VU | ANTI ICE/PROBES/2/TAT | 1DA2 | Y15 |
| 122VU | ANTI ICE/PROBES/2/PITOT | 3DA2 | Y14 |
| 122VU | ANTI ICE/PROBES/2/AOA | 4DA2 | Y13 |
| 122VU | ANTI ICE/PROBES/PHC/2 | 2DA2 | Y12 |
| 122VU | ANTI ICE/PROBES/2/STATIC | 5DA2 | Y11 |
| 122VU | ANTI ICE/PROBES/3/PITOT | 3DA3 | Z16 |
| 122VU | ANTI ICE/PROBES/3/AOA | 4DA3 | Z15 |
| 122VU | ANTI ICE/PROBES/3/STATIC | 5DA3 | Z14 |
| 122VU | ANTI ICE/PROBES/1/STATIC | 5DA1 | Z13 |
| 122VU | ANTI ICE/PROBES/1/TAT | 1DA1 | Z12 |
Subtask 76-11-00-710-057-A ** ON A/C NOT FOR ALL
A. Do this test
Upper Display Unit of the ECAM System N1 Indication ** ON A/C NOT FOR ALL
Upper Display Unit of the ECAM System N1 Indication ** ON A/C NOT FOR ALL
5. Close-up Upper Display Unit of the ECAM System N1 Indication ** ON A/C NOT FOR ALL Upper Display Unit of the ECAM System N1 Indication ** ON A/C NOT FOR ALL | ACTION | RESULT |
|---|---|
| 1.Open the circuit breakers 2KS1, 2KS2. | |
| 2.Move the ENG1(2) throttle control lever. | Make sure that the small white circle on N1 indication follows the throttle position. |
| 3.Close the circuits breakers 2KS1, 2KS2. | |
| 4.Open the circuit breakers 4KS1, 4KS2. | |
| 5.Move the ENG1(2) throttle control lever. | Make sure that the small white circle on N1 indication follows the throttle position. |
| 6.Close the circuit breakers 4KS1, 4KS2. | |
| 7.Move the ENG1(2) throttle control lever. | Make sure that the small white circle on N1 indication follows the throttle position. Make sure that no warning message comes into view on the upper ECAM DU. |
| 8.Do the BITE test of the EFCS (Ref. AMM TASK 27-96-00-740-001). | Make sure that there are no messages related to the throttle control unit 8KS1(2). |
Subtask 76-11-00-865-076-A ** ON A/C NOT FOR ALL
A. Open, safety and tag this(these) circuit breaker(s):
Subtask 76-11-00-869-076-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
B. 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).
Subtask 76-11-00-862-052-A ** ON A/C NOT FOR ALL (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).