Operational Test of the EEC [IAE]

TASK 73-22-34-710-040-A
Operational Test of the EEC

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Use this test to do a check of the EEC operation.
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

3. Job Set-up
Subtask 73-22-34-861-051-A ** ON A/C NOT FOR ALL

A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002)

Subtask 73-22-34-869-052-A ** ON A/C NOT FOR ALL

B. Do an EIS Start Procedure (ECAM display unit only) (Ref. AMM TASK 31-60-00-860-001).

Subtask 73-22-34-865-051-A ** ON A/C NOT FOR ALL

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.

C. Open, safety and tag this(these) circuit breaker(s):

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
49VU	ANTI ICE/RAIN/RPLNT/CAPT	1DB1	D01
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B	2WE1	Q44
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A	1WE1	Q43
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B	2WE2	Q42
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A	1WE2	Q41
122VU	ANTI ICE/WINDOWS/R	4DG2	W14
122VU	ANTI ICE/RAIN/RPLNT/F/O	1DB2	W11
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 73-22-34-865-050-A ** ON A/C NOT FOR ALL

D. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
49VU	FWS/FWC1/SPLY	3WW	F01
121VU	EIS/FWC2/SPLY	2WW	Q07
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
121VU	ENGINE/IGN/ENG1/SYS B	3JH1	P41
121VU	ENGINE/IGN/ENG1/SYS A BAT	2JH1	P39
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
FOR FIN: 1000EM2 (ENGINE2)
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
121VU	ENGINE/IGN/ENG2/SYS B	3JH2	P42
121VU	ENGINE/IGN/ENG2/SYS A BAT	2JH2	P40
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40

Subtask 73-22-34-869-051-A ** ON A/C NOT FOR ALL

E. Aircraft Maintenance Configuration
(1) On the panel 115VU, make sure that :

the ENG MODE CRANK/NORM/IGN/START selector switch is set to NORM.
the ENG MASTER 1(2) switch is set to OFF.

(2) On the panel 22VU, make sure that the ENG MAN START 1(2) pushbutton switch is released.

4. Procedure
Subtask 73-22-34-710-056-B ** ON A/C NOT FOR ALL

A. Do this test:

NOTE: This test is for system 1. For system 2, use the indication between parentheses.

ACTION	RESULT
1.On panel 50VU: Push then release the FADEC GND PWR ENG1(2) pushbutton switch (on the pushbutton switch, the ON legend is on).	The upper display unit of the ECAM system shows: EPR = 1 (± 0.007) EGT = ambient temperature N1 = NCD (XX) N2 = NCD (XX) FF = O Thrust limit mode (CL or CLB).
2.On panel 50VU: Push the FADEC GND PWR ENG1(2) pushbutton switch.	On the pushbutton switch, the ON legend goes off. On the upper display unit of the ECAM system, the engine parameters (EPR and EGT) go out of view (XX).
Push then release the FADEC GND PWR ENG1(2) pushbutton switch.	On the pushbutton switch, the ON legend comes on. On the upper display unit of the ECAM system, the engine parameters (EPR and EGT) come into view.
3.On the panel 20VU: Lift the guard on the ENG1(2) FIRE pushbutton switch. Push to release the pushbutton switch.	On the upper display unit of the ECAM system, the engine parameters go out of view: The single chime sounds and the MASTER CAUT warning light appears. The warning messages: ENG1(2) SHUT DOWN AVOID ICING CONDITIONS appear
Push the ENG1(2) FIRE pushbutton switch to reset.	The engine parameters come into view. The ENG1(2) SHUT DOWN warning message goes out of view.
4.On panel 115VU: Set the ENG MODE/CRANK/NORM/IGN/START selector switch to IGN/START.	On the lower display unit of the ECAM system (ENGINE page): The IGN indication and the symbol for the pneumatic starter valve come into view.
WARNING: BEFORE YOU PUSH THE MAN START PUSHBUTTON SWITCH, MAKE SURE THAT, ON THE ECAM DISPLAY UNIT, THE PRESSURE AT THE STARTER VALVE INLET IS ZERO PSI. IF THE PRESSURE IS NOT ZERO PSI, THE ENGINE CAN ROTATE AND CAUSE INJURY. WARNING: DO NOT WORK ON THE IGNITION SYSTEM WHEN: THE MASTER CONTROL SWITCH IS IN THE ON POSITION AND THE ENG/MODE SELECTOR SWITCH IS IN THE IGN/START POSITION. IN THIS CONFIGURATION THE IGNITION SYSTEM IS ENERGIZED WITH HIGH VOLTAGE CURRENT THAT CAN BE DANGEROUS. 5.Make sure that there is zero psi at the starter valve inlet and make sure that no one works on the ignition system.
6.On panel 22VU: Push the ENG MAN START 1(2) pushbutton switch.	On the pushbutton switch, the ON legend comes on. On the upper display unit of the ECAM system: The EGT limit on the EGT disappears. NOTE: The EGT limit does not disappear for A321 aircraft: it increases from 610 DEG.C (1130 DEG.F) to 635 DEG.C (1175 DEG.F). The warning messages: ENG1(2) START VALVE FAULT START VALVE NOT OPEN MAN START............ OFF appear associated with the MASTER CAUT light and the single chime.
7.On panel 115VU: Set the ENG MASTER 1(2) switch to ON.	On the upper display unit of the ECAM system, the warning messages: ENG1(2) START VALVE FAULT START VALVE NOT OPEN MAN START.....OFF ENG MASTER 1(2)....OFF and after a few seconds: ENG1(2) START FAULT ENG1(2) IGNITION FAULT MAN START.....OFF ENG MASTER 1(2)....OFF ENG1(2) IGN A+B FAULT AVOID ADVERSE CONDITIONS appear associated with the MASTER CAUT light and the single chime. On the lower display unit of the ECAM system, the ignition system AB indication comes into view.
8.On panel 115VU: Set the ENG MASTER 1(2) switch to OFF.	On the upper display unit of the ECAM system the warning messages: START FAULT ENG1(2) IGNITION FAULT MAN START..........OFF remain in view.
	On the lower display unit of the ECAM system, the ignition system AB indication goes out of view.
9.On panel 22VU: Release the ENG MAN START 1(2) pushbutton switch.	On the pushbutton switch, the ON legend goes off.
10.On panel 115VU: Set the ENG MODE/CRANK/NORM/IGN/START selector switch to NORM.	On the lower display unit of the ECAM system: After a few seconds, the symbol for the starter valve goes out of view.
11.On the ECAM control panel, push the CLR pushbutton.	On the upper display unit of the ECAM system, the warning messages go out of view.
12.Set the ENG1(2) throttle control lever to CL, MCT, TOGA. NOTE: With the throttle control lever at less than the CL detent on the quadrant, CL will be continuously displayed. If one or both throttle control levers are above CL, MCT will be displayed, if one or both throttle control levers are above the MCT detent, TOGA will be displayed.	On the upper display unit of the ECAM system: Make sure that the indications agree with the position of the throttle control lever. When the throttle control lever is set to TOGA: Make sure that the EPR THR moves to the upper EPR limit.
13.Set the ENG1(2) throttle control lever to FULL REV. NOTE: When you perform the test, if you energized EEC 1 and 2, you have to put both throttle control levers to FULL REV to display MREV on the ECAM.	On the upper display unit of the ECAM system: The thrust limit mode MREV comes into view.
14.Set the ENG1(2) throttle control lever to O.	On the upper display unit of the ECAM system: The thrust limit mode CL or CLB comes into view.
WARNING: DO NOT WORK ON THE IGNITION SYSTEM WITH THE CB 2KS1 (2KS2) OPENED WHEN: THE MASTER CONTROL SWITCH IS IN THE OFF POSITION AND THE ENG/MODE SELECTOR SWITCH IS IN THE NORM POSITION. IN THIS CONFIGURATION, THE IGNITION SYSTEM IS ENERGIZED WITH HIGH VOLTAGE CURRENT THAT CAN BE DANGEROUS. 15.On panel 49VU:
Open circuit breaker 2KS1(2KS2).	On the upper display unit of the ECAM system: Make sure that EPR and FF become NCD(XX). Make sure that the remaining parameter EGT stays in view. The warning message that follows appears: ENG 1(2) FADEC A FAULT. NOTE: If you do this test on system 2, the ENG2 OIL TEMP parameter becomes NCD(XXX) when circuit breaker 2KS2 is open. NOTE: With BMC PN 733901-01 installed: the 0 DEG.C (32 DEG.F) indication is shown in green on the SD.
16.On panel 121VU: Open circuit breaker 4KS1(4KS2).	On the upper display unit of the ECAM system, make sure that the engine parameter EGT becomes NCD(XX). The single chime sounds and the MASTER CAUT light appears associated with the warning message: ENG1(2) FADEC FAULT ENG INDICATIONS..CHECK or ENG PARAMETERS..CHECK C/B TRIPPED REAR PNL N-R (after about 1 min). On the lower display unit of the ECAM system: Make sure that the ENG1(2) OIL TEMP parameter becomes NCD (XX). NOTE: With BMC PN 733901-01 installed: the 0 DEG.C (32 DEG.F) indication is shown in green on the SD.
17.On the ECAM control panel, push the CLR pushbutton switch until all the warning messages go out of view on the upper display unit of the ECAM system.
18.On panel 49VU: Close circuit breaker 2KS1(2KS2).	On the upper display unit of the ECAM system: Make sure that the engine parameters EPR, EGT and FF come into view.
	On the lower display unit of the ECAM system: Tthe OIL TEMP parameter comes into view.
19.On panel 121VU, close circuit breaker 4KS1(4KS2).	On the upper display unit of the ECAM system: Make sure that the EPR, EGT and FF parameters for the ENG1(2) stay in view.
20.On panel 22VU: Push the ENG1(2) N1 MODE pushbutton switch.	On the pushbutton switch, the ON legend comes on.
	On the upper display unit of the ECAM system, the EPR ENG1(2) indication becomes NCD(XX). NOTE: After you push the pushbutton switch, you must wait 30 seconds before you release the pushbutton switch, or the engine may not revert back to the EPR mode.
Release the ENG1(2) N1 MODE pushbutton switch.	On the pushbutton switch, the ON legend goes off.
	The EPR ENG1(2) indication comes back to the initial value.
21.On panel 50VU: Push the FADEC GND 1(2) pushbutton switch.	On the pushbutton switch, the ON legend goes off.
	On the upper display unit of the ECAM system, the engine parameters go out of view after five minutes.
22.On panels 49VU and 121VU: Open and close circuit breakers 3WW for FWC1 and 2WW for FWC2.	Reset the FWC.
NOTE: Disregard any warning information about "L/R windows anti-ice fault".

5. Close-up
Subtask 73-22-34-865-052-A ** ON A/C NOT FOR ALL

A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

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
49VU	ANTI ICE/RAIN/RPLNT/CAPT	1DB1	D01
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B	2WE1	Q44
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A	1WE1	Q43
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B	2WE2	Q42
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A	1WE2	Q41
122VU	ANTI ICE/WINDOWS/R	4DG2	W14
122VU	ANTI ICE/RAIN/RPLNT/F/O	1DB2	W11
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 73-22-34-862-052-A ** ON A/C NOT FOR ALL

B. Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002).

Subtask 73-22-34-862-051-A ** ON A/C NOT FOR ALL

C. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 04:05:09 UTC