Functional Check of Blue Electrical Pump Pressure by Reading ECAM Indication

TASK 29-12-00-710-001-A
Functional Check of Blue Electrical Pump Pressure by Reading ECAM Indication

ZONE: 210
FIN: 2075GJ

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

B. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
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 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
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 29-12-00-865-050-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	HYD/HYD PWR/B WARN/& CTL	2702GJ	C12
123VU	B HYD/ELEC PUMP	2701GJ	AB09

Subtask 29-12-00-860-050-A

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) On the ECAM control panel on the center pedestal, push the HYD pushbutton. Make sure that the ECAM lower Display Unit (DU) shows the HYD page.
(4) On the panel 24VU, make sure that the ELAC 2 pushbutton switch (P/BSW) is set to ON (OFF and FAULT lights off).
(5) On the panel 23VU, make sure that the ELAC 1 and SEC 1 P/BSW are set to ON (OFF and FAULT lights off).
(6) Make sure that the ECAM does not show any of these conditions:

Low air pressure in the Blue reservoir,
Low fluid level in the Blue reservoir.

(7) If necessary, pressurize the reservoir (Ref. AMM TASK 29-14-00-614-002).
(8) If necessary. add fluid to the reservoir (Ref. AMM TASK 12-12-29-611-001).
(9) On the panel 40VU, make sure that the BLUE ELEC PUMP P/BSW is set to AUTO (OFF and FAULT lights off).

4. Procedure
Subtask 29-12-00-710-050-A

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.

A. Do this test:

ACTION	RESULT
1.On the panel 50VU: push the BLUE PUMP OVRD P/BSW.	On the panel 50VU: the ON light of the BLUE PUMP OVRD P/BSW comes on.
	The electric pump of the Blue hydraulic system starts.
	On the ECAM lower DU: the pressure in the Blue hydraulic system must be between 2800 and 3200 psi.
2.Operate the ailerons, the elevators and the rudder.	On the ECAM lower DU: the pressure in the Blue hydraulic system must be not less than 2200 psi (with the control surfaces in operation).
3.Stop the operation of the control surfaces.	On the ECAM lower DU: the pressure in the Blue hydraulic system must increase to between 2800 and 3200 psi.
4.On the panel 40VU:
push the BLUE ELEC PUMP P/BSW.	On the panel 40VU: the OFF light of the BLUE ELEC PUMP P/BSW comes on. On the panel 50VU: The ON light of the BLUE PUMP OVRD P/BSW goes off.
	The electric pump of the Blue hydraulic system stops.

5. Close-up
Subtask 29-12-00-860-051-A

A. Put the aircraft back to its initial configuration.
(1) On the panel 40VU, push and release the BLUE ELEC PUMP P/BSW. Make sure that the OFF and FAULT lights are not on.
(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 05:46:39 UTC