Test No.1 : Dry Motor Leak Check [IAE]

TASK 71-00-00-710-045-A
Test No.1 : Dry Motor Leak Check

ZONE: 210
ZONE: 400

1. Reason for the Job
Use the Dry Motor Leak check to do a check of the fuel, oil and hydraulic systems for leaks.
2. Job Set-up Information
A. 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

B. 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 71-00-00-860-012-A	Engine Safety Precautions
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: 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: 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: MAKE SURE THE FAN COWLS AND THRUST REVERSER HALVES ARE SECURELY HELD OPEN DURING MOTORING. MAKE SURE HOLD OPEN RODS ARE SERVICEABLE.

CAUTION: DO NOT REPLACE AN IDLE LEAK CHECK BY A MOTORING TEST. YOU CANNOT DETECT POTENTIAL OIL LEAKS WITH A MOTORING TEST. IF YOU DO A MOTORING TEST INSTEAD OF AN IDLE LEAK CHECK, YOU CAN CAUSE AN ENGINE SHUTDOWN.

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.

Subtask 71-00-00-010-089-A ** ON A/C NOT FOR ALL

A. 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 71-00-00-040-067-A ** ON A/C NOT FOR ALL

B. 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 71-00-00-010-091-A ** ON A/C NOT FOR ALL

C. 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 71-00-00-861-070-A ** ON A/C NOT FOR ALL

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

Subtask 71-00-00-865-150-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
49VU	ENGINE/1/HP FUEL SOV	1KC1	A01
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
49VU	ENGINE/2/HP FUEL SOV	1KC2	A02
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 71-00-00-860-062-A ** ON A/C NOT FOR ALL

F. Get Access

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).
(2) Do the Electronic Instrument System (EIS) start procedure (Ref. AMM TASK 31-60-00-860-001).
(3) 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).

4. Procedure
Subtask 71-00-00-710-126-B ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THE ENG/MASTER 1(2) CONTROL SWITCH (ON THE PANEL 115VU) IS SET TO OFF BEFORE YOU START THE FUEL PUMPS.

CAUTION: BEFORE YOU MOTOR THE ENGINE, MAKE SURE ALL MAIN FUEL PUMPS ARE SET TO ON (LIGHTS ARE OUT) AND THE CIRCUIT BREAKER 1KC1 (2) IS PULLED. THIS ENSURES POSITIVE FUEL PRESSURE TO THE ENGINE.

A. Do this test:
CAUTION : DO NOT MOTOR THE ENGINE MORE THAN THE LIMIT OR YOU CAN DAMAGE THE STARTER.
(1) For general information, refer to the engine safety precautions (Ref. AMM TASK 71-00-00-860-012) and the engine operation limits, guidelines and special procedures (Ref. AMM TASK 71-00-00-860-010).

ACTION	RESULT
1.On HYD/FUEL panel 40VU:
Push all the FUEL/PUMPS pushbutton switches.	The OFF legends of these pushbutton switches go off.
2.On overhead circuit breaker panel 49VU:
Open circuit breaker 1KC1 (A01) (1KC2 (A02)) to open the LP valve.	After a few seconds: On the upper ECAM display unit: * The ENG 1(2) LP VALVE OPEN message comes into view. * The single chime sounds. * The MASTER CAUT light comes on. NOTE: In case of an engine fire, push and then release the ENG FIRE pushbutton switch.
3.Make sure that the throttle control lever of engine 1(2) is in the idle position (zero on the graduated sector).
4.On 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 tank (Ref. AMM TASK 12-13-79-610-011).
5.On 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. Motor the engine as long as necessary but obey the starter operating limits: 120 seconds. Look at the N1 and N2 indications to make sure that the engine operates. Make sure that the oil pressure is positive. Do not continue to motor the engine if you do not see a positive oil pressure. Make sure that you do not operate the starter more than its operating limits: Three cycles: two cycles of a duration of two minutes and one cycle of a duration of one minute maximum, and let 15 seconds of no operation between the cycles to allow for the starter rotor lubrication, or Four minutes of continuous cranking. Let the starter cool for 30 minutes before you try a new start of motoring. Do not engage the starter when the N2 speed is above 10 percent. While the engine is motored, do a visual check for leaks at the fuel and oil system tubes and manifolds.
6.On overhead control and indicating panel 22VU:
Release the ENG/MAN START/1(2) pushbutton switch.	The ON legend of this pushbutton switch goes off. On the lower ECAM display unit, on the ENGINE page, the symbol for the starter valve is in the closed position.
7.On 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.
8.On the lower ECAM display unit:
Get the ENGINE page.	On the lower ECAM display unit, the ENGINE page comes into view.
9.On the lower ECAM display unit, on the ENGINE page:
After a minimum of 5 minutes after the end of the test, look at the oil level indication.	Do a check of the oil tank (Ref. AMM TASK 12-13-79-610-011).
10.When the engine is shut down, on HYD/FUEL panel 40VU:
Release all the FUEL/PUMPS pushbutton switches.	The OFF legend of these pushbutton switches comes on.
11.On overhead circuit breaker panel 49VU:
Close circuit breaker 1KC1 (A01) (1KC2 (A02)) to close the LP valve.	On the upper ECAM display unit: The ENG1(2) LP VALVE OPEN message goes out of view. The MASTER CAUT light goes off. NOTE: During the engine coastdown, listen for any unusual noise from the turning components of the engine.

Subtask 71-00-00-210-058-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 71-00-00-869-173-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 71-00-00-860-060-A ** ON A/C NOT FOR ALL

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

Subtask 71-00-00-862-069-A ** ON A/C NOT FOR ALL

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

Subtask 71-00-00-410-090-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 71-00-00-440-066-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 71-00-00-410-092-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 02:28:15 UTC