Operational Check of ACT Transfer Pump GFI (SFAR 88)

TASK 28-28-00-710-803-A
Operational Check of ACT Transfer Pump GFI (SFAR 88)

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

ZONE: 122
ZONE: 210
FIN: 122QH ** ON A/C NOT FOR ALL
FIN: 124QH ** ON A/C NOT FOR ALL

1. Reason for the Job
Refer to the MPD TASK: 281800-13
OPERATIONAL CHECK OF ACT TRANSFER PUMP GFI (SFAR 88).
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
122	AVIONICS COMPARTMENT
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
811

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 28-00-00-910-001-A	Fuel Safety Procedures
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A	Close the Avionics Compartment Doors after Access
ACT Transfer Pump GFI - Location and Detail

3. Job Set-up
Subtask 28-28-00-941-056-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).

Subtask 28-28-00-865-199-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	FUEL/ACT/FUEL PUMP/SPLY	25QH	Q29

Subtask 28-28-00-010-135-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Open access door 811 (Ref. AMM TASK 52-41-00-010-002).
(2) To get access to Ground Fault Interrupter (GFI) devices 122QH and 124QH:

On 107VU, loosen the quick release fasteners and remove the cover.

4. Procedure
Subtask 28-28-00-710-080-A ** ON A/C NOT FOR ALL

A. Operational Check of the ACT Transfer Pump GFI (SFAR 88)
(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 (CP), push the FUEL P/BSW:

Make sure that the FUEL page shows on the ECAM lower Display Unit (DU).

(4) Make sure that the applicable ACT(s) contains a minimum of 500 kg (1100 lb) of fuel.
(5) Make sure that the center tank contains a minimum of 1500 kg (3310 lb) of fuel.

ACTION	RESULT
1.In the cockpit, on overhead panel 28VU:	On overhead panel 28VU:
Push (in) the MODE SEL P/BSW.	The MAN light in the P/BSW comes on.
Set the ACT XFR rotary switch to AFT1.	On the ECAM lower DU: The solid green arrow comes into view.
2.In the avionics compartment, on panel 107VU, find the GFI devices: 122QH 124QH.
3.During the step that follows, you must monitor the Trip/Reset indicator button, when you push the related Test button.
4.On GFI 122QH, push the Test button.	On GFI 122QH: Make sure that the Trip/Reset indicator button moves out to tripped position Make sure that you can see the metal shaft of the Trip/Reset indicator.
	The pump stops.
	After 60 seconds, on the ECAM upper DU: The Engine/Warning Display (EWD) shows the warning "FUEL - ACT PUMP LO PR".
5.In the cockpit, on overhead panel 28VU: Release (out) the MODE SEL P/BSW.	On the ECAM lower DU: The MAN light in the P/BSW goes off.
6.On GFI 122QH: Push the Trip/Reset indicator until it is flush with the GFI body.	On GFI 122QH, the Trip/Reset indicator button is in reset position.
7.In the cockpit, on overhead panel 28VU: Push (in) the MODE SEL P/BSW.	On overhead panel 28VU: The MAN light in the P/BSW comes on.
8.On GFI 124QH, push the Test button.	On GFI 124QH: Make sure that the Trip/Reset indicator button moves out to tripped position Make sure that you can see the metal shaft of the Trip/Reset indicator.
	The pump stops.
	After 60 seconds, on the ECAM upper DU: The EWD shows the warning "FUEL - ACT PUMP LO PR".
9.In the cockpit, on overhead panel 28VU: Release (out) the MODE SEL P/BSW.	On the ECAM lower DU: The MAN light in the P/BSW goes off.
10.On GFI 124QH: Push the Trip/Reset indicator until it is flush with the GFI body.	On GFI 124QH, the Trip/Reset indicator button is in the reset position.
11.In the cockpit, on overhead panel 28VU:	On overhead panel 28VU:
Set the ACT XFR rotary switch to OFF.	On the ECAM lower DU: The solid green arrow goes out of view.

NOTE: The solid-green ACT transfer-arrow will show when the pump is operating and the transfer path is open. The arrow will not show when the pump goes to low pressure.

NOTE: The AUTO TRANSFER FAULT alert can show because of the fuel distribution in the wing and center tanks. This is not important for the GFI test.

5. Close-up
Subtask 28-28-00-410-096-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) On 107VU, install the cover and tighten the quick release fasteners.
(3) Close access door 811 (Ref. AMM TASK 52-41-00-410-002).

Subtask 28-28-00-860-271-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.02 06:17:54 UTC