Test No.2 : Wet Motor Leak Check [IAE]

TASK 71-00-00-710-046-B
Test No.2 : Wet Motor Leak Check

ZONE: 210
ZONE: 400

1. Reason for the Job
Use the Wet Motor Leak Check to do an inspection of the complete fuel distribution system and the oil system.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 10-11-00-555-014-A	Removal of the Aircraft Protection Equipment
TASK 12-13-79-610-011-A	Check Oil Level and Replenish
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
TASK 36-12-00-860-001-A	Pressurization of the Bleed System with the APU
TASK 36-12-00-860-002-A	Pressurization of the Bleed System through the HP Ground Connector
TASK 71-00-00-700-013-A	Procedure to Dry Out the High Pressure Turbine (HPT) after Oil Contamination
TASK 71-00-00-860-010-B	Engine Operation Limits, Guidelines and Special Procedures
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-040-013-A	Deactivation of the Thrust Reverser System for Flight
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-30-00-440-013-A	Activation of the Thrust Reverser System for Flight
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves

3. Job Set-up

WARNING: MAKE SURE THAT ALL ENGINE OPERATING AREAS ARE AS CLEAN AS POSSIBLE. ALL RAMPS, TAXIWAYS, RUNWAYS AND OTHER OPERATING AREAS MUST BE VERY CLEAN TO PREVENT BAD DAMAGE TO THE ENGINE, AIRCRAFT AND PERSONS IN THE AREA.

WARNING: DO NOT TOUCH THE PROBES DURING OR IMMEDIATELY AFTER THIS PROCEDURE. THE PROBES WILL BE HOT AND CAN BURN YOU.

WARNING: DO NOT TRY TO STOP THE FAN FROM TURNING BY HAND. THIS CAN CAUSE INJURY TO THE PERSONS AND DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT THE LANDING GEAR GROUND SAFETIES AND THE WHEEL CHOCKS ARE IN POSITION. MOVEMENT OF THE AIRCRAFT CAN BE DANGEROUS.

WARNING: DO NOT REMOVE THE FILLER CAP OF THE OIL TANK IMMEDIATELY AFTER ENGINE OPERATION. LET THE OIL PRESSURE DECREASE FOR A MINIMUM OF 5 MINUTES AFTER THE ENGINE SHUTDOWN. IF YOU OPEN THE FILLER CAP WHEN THERE IS PRESSURE IN THE TANK, THE OIL CAN BURN YOU DANGEROUSLY.

WARNING: DO NOT PERFORM WET-MOTORING IN A HANGAR OR IN A CLOSED AREA. A LARGE QUANTITY OF HIGHLY FLAMMABLE FUEL VAPORS COME OUT FROM THE ENGINE DURING THIS PROCEDURE AND THERE IS A RISK OF FIRE.

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

CAUTION: DO NOT MOTOR THE ENGINE WITH EITHER THE FAN COWLS OR THRUST REVERSER HALVE(S) OPEN WHEN THE WIND SPEED IS 50 MPH (80 KM/H) OR MORE. OTHERWISE INJURY AND/OR DAMAGE TO THE ENGINE CAN OCCUR.

CAUTION: - SEE THE APPLICABLE FIGURE FOR WIND LIMIT RESTRICTIONS WHEN THE ENGINE OPERATES.

NATURAL WINDS AND IRREGULAR FORCES FROM SUDDEN GUSTS INCREASE THE DANGEROUS AREA.
DO NOT GO ABOVE OPEN COWLING LIMITATIONS WHEN YOU DO THE TESTS.
THE OPERATOR MUST FULLY KNOW ALL THE OPERATING LIMITS AND PROCEDURES BEFORE THE ENGINE OPERATES.

CAUTION: MAKE SURE THE FAN COWLS AND THRUST REVERSER HALVES ARE SECURELY HELD OPEN DURING MOTORING. MAKE SURE HOLD OPEN RODS ARE SERVICEABLE.

CAUTION: MAKE SURE THAT THERE IS NO HYDRAULIC GROUND POWER SUPPLY CONNECTED TO THE AIRCRAFT WHEN YOU DO THIS PROCEDURE. IF A HYDRAULIC GROUND POWER SUPPLY IS CONNECTED, THERE IS A RISK OF DAMAGE TO THE ENGINE PUMPS.

CAUTION: MAKE SURE THAT THE C/B'S 1KC1/2 ARE CLOSED WHEN YOU DO THIS PROCEDURE. THIS IS A CHECK TO PREVENT FUEL FLOODING AND TO PREVENT ENGIRE FIRE.

Subtask 71-00-00-941-178-A ** ON A/C NOT FOR ALL

A. Safety Precautions

CAUTION: REMOVE THE PROTECTIVE COVERS FROM THE PROBES BEFORE YOU DO THIS PROCEDURE. IF YOU DO NOT REMOVE THEM, THE PROBES AND PROTECTIVE COVERS CAN BECOME DAMAGED OR BURNED.

(1) Make sure that all the protective covers are removed from the aircraft (Ref. AMM TASK 10-11-00-555-014).

Subtask 71-00-00-010-150-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.

Subtask 71-00-00-040-089-A ** ON A/C NOT FOR ALL

C. Deactivate the thrust reverser.

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Deactivate the thrust reverser hydraulic control unit (HCU) (Ref. AMM TASK 78-30-00-040-012).
(2) Deactivate the thrust reverser system (Ref. AMM TASK 78-30-00-040-013).

Subtask 71-00-00-010-151-A ** ON A/C NOT FOR ALL

D. Open the thrust reverser halves: (Ref. AMM TASK 78-32-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 71-00-00-865-129-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
121VU	ENGINE/ENG1/OIL/PRESS/AND REV SNSR/CHAN A	2EN1	N40
121VU	ENGINE/ENG1/OIL/QTY	1EN1	N39
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/ENG2/OIL/PRESS/AND REV SNSR/CHAN A	2EN2	N42
121VU	ENGINE/ENG2/OIL/QTY/AND REV SNSR/CHAN B	1EN2	N41
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40

Subtask 71-00-00-865-130-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
121VU	ENGINE/IGN/ENG1/SYS B	3JH1	P41
121VU	ENGINE/IGN/ENG1/SYS A BAT	2JH1	P39
FOR FIN: 1000EM2 (ENGINE2)
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
121VU	ENGINE/IGN/ENG2/SYS B	3JH2	P42
121VU	ENGINE/IGN/ENG2/SYS A BAT	2JH2	P40

Subtask 71-00-00-861-085-A ** ON A/C NOT FOR ALL

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

Subtask 71-00-00-860-137-A ** ON A/C NOT FOR ALL

H. Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).

Subtask 71-00-00-869-292-A ** ON A/C NOT FOR ALL

I. Prepare for the test:

CAUTION: MAKE SURE THAT THE HYDRAULIC RESERVOIR PRESSURE IS IN THE CORRECT OPERATION RANGE BEFORE YOU MOTOR THE ENGINE (THE HYDRAULIC FLUID IS NECESSARY TO LUBRICATE THE HYDRAULIC PUMPS THAT THE ENGINE OPERATE).

(1) Supply the aircraft pneumatic system from a HP ground power unit or the APU (Ref. AMM TASK 36-12-00-860-001) or (Ref. AMM TASK 36-12-00-860-002).
(2) Make sure that fire-fighting personnel is present.
(3) On the lower ECAM display unit:
(a) get the HYDRAULIC page
(b) make sure that the pressure of the Green reservoir for the engine 1 (Yellow reservoir for the engine 2) is correct
(c) make sure that the reservoir fluid level is correct.
(4) Make sure that the engine 1(2) pump is serviceable (on the panel 40VU, the OFF legend of the ENG1(2) PUMP pushbutton switch must be off).
(5) Do the operational test of the engine fire and overheat detection (loop and squib test).

4. Procedure
Subtask 71-00-00-710-182-A ** ON A/C NOT FOR ALL

CAUTION: DO NOT OPERATE THE ENGINE IF THE FUEL INLET PRESSURE IS NOT POSITIVE (THE FUEL IS NECESSARY TO LUBRICATE THE ENGINE FUEL PUMP AND THE FMU AND THUS PREVENT DAMAGE).

CAUTION: DO NOT MOTOR THE ENGINE MORE THAN THE LIMIT OR YOU CAN DAMAGE THE STARTER.

A. Do this test:

NOTE: For general information refer to Engine Operation Limits, Guidelines and Special Procedures (Ref. AMM TASK 71-00-00-860-010).

ACTION	RESULT
1.On the HYD/FUEL panel 40VU:
push all the FUEL/PUMPS pushbutton switches	the OFF legends of these pushbutton switches go off.
2.Make sure that the throttle control lever of the engine 1(2) is in the idle stop position (zero on the graduated sector).
3.On the ENG panel 115VU:
set the ENG/MODE/CRANK/NORM/IGN/START selector switch to CRANK.	On the lower ECAM display unit: the ENGINE page comes into view make sure that the available air pressure is between 30 psi (2.07 bar) and 40 psi (2.76 bar) do a check of the oil quantity in the oil tank (Ref. AMM TASK 12-13-79-610-011).
4.On the overhead control and indicating panel 22VU:
push the ENG/MAN START/1(2) pushbutton switch	the ON legend of this pushbutton switch comes on on the lower ECAM display unit, on the ENGINE page: the symbol for the starter valve is in the open position. NOTE: Make sure that you do not go over the starter limits that follows: 3 consecutive cycles, two of 2 minutes and one of 1 minute duration maximum 15 seconds of no operation between cycles to allow for starter rotor relubrication after 3 cycles or 4 minutes of continuous cranking , wait 30 minutes to allow the starter to cool before you try a new start or motoring.
5.When the N2 speed is more (or equal) than 15 percent:
on the ENG panel 115VU, set the ENG/MASTER 1(2) switch to ON.	On the upper ECAM display unit: the fuel flow indication FF increases. On the lower ECAM display unit: make sure that the oil pressure indication is positive. NOTE: Do not turn the engine for more than 20 seconds with the ENG/MASTER 1(2) switch in the ON position. Large quantities of fuel can be collected in the engine if the ENG/MASTER 1(2) switch stays ON for more than this time.
6.On the ENG panel 115VU:
set the ENG/MASTER 1(2) switch to OFF	the starter valve goes to closed position. On the lower ECAM display unit: the symbol for the starter valve is in the closed position. NOTE: The EEC re-engages automatically the starter valve when the N2 speed is below 10 percent. while the engine is motored, do a visual check for leaks at the fuel and oil system tubes and manifolds.
7.When on the lower ECAM display unit, the symbol for the starter valve is in the open position, motor the engine for a minimum of 60 seconds.	This dries the fuel that can be in the combustor. NOTE: Do not motor the engine for more than 120 seconds.
8.After a lapse of fuel drying time of between 60 and 120 seconds, on the overhead control and indicating panel 22VU:
release the ENG/MAN START/1(2) pushbutton switch	the ON legend of the ENG/MAN START/1(2) pushbutton switch goes off on the lower ECAM display unit: the symbol for the starter valve is in the closed position.
9.On the ENG panel 115VU:
set the ENG/MODE/CRANK/NORM/IGN/START selector switch to NORM.	On the lower ECAM display unit: the ENGINE page goes out of view.
10.On the HYD/FUEL panel 40VU:
release all the FUEL/PUMPS pushbutton switches	the OFF legends of these pushbutton switches come on.

NOTE: During engine shutdown, listen for unusual noise from the turning components of the engine.

Subtask 71-00-00-210-086-A ** ON A/C NOT FOR ALL

B. Determine if it is necessary to do the Dry Out Procedure of the High Pressure Turbine (Ref. AMM TASK 71-00-00-700-013). Do the procedure if necessary.

5. Close-up
Subtask 71-00-00-869-293-A ** ON A/C NOT FOR ALL

A. Stop the pneumatic supply to the aircraft:
(1) Disconnect the HP ground power unit or shut down the APU.

Subtask 71-00-00-862-079-A ** ON A/C NOT FOR ALL

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

Subtask 71-00-00-860-138-A ** ON A/C NOT FOR ALL

C. Do the EIS stop procedure: (Ref. AMM TASK 31-60-00-860-002).

Subtask 71-00-00-410-139-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser halves: (Ref. AMM TASK 78-32-00-410-010)
(3) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(4) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 71-00-00-440-085-A ** ON A/C NOT FOR ALL

E. Activate the thrust reverser system and HCU (Ref. AMM TASK 78-30-00-440-013) and (Ref. AMM TASK 78-30-00-440-012).

Subtask 71-00-00-410-140-A ** ON A/C NOT FOR ALL

F. Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.

Subtask 71-00-00-865-131-A ** ON A/C NOT FOR ALL

G. 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
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
121VU	ENGINE/IGN/ENG1/SYS B	3JH1	P41
121VU	ENGINE/IGN/ENG1/SYS A BAT	2JH1	P39
FOR FIN: 1000EM2 (ENGINE2)
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
121VU	ENGINE/IGN/ENG2/SYS B	3JH2	P42
121VU	ENGINE/IGN/ENG2/SYS A BAT	2JH2	P40

[Rev.10 from 2021] 2026.04.01 04:21:40 UTC