Installation of the Panel Assembly

TASK 28-12-45-400-002-A
Installation of the Panel Assembly

WARNING: THIS PROCEDURE USES A FUEL SYSTEM ITEM THAT IS IN A CATEGORY KNOWN AS A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION (CDCCL). CDCCL IDENTIFIES AN ITEM THAT CAN BE THE SOURCE OF A POSSIBLE FUEL TANK IGNITION. YOU MUST KEEP ALL CDCCL ITEMS IN THE APPROVED CONFIGURATION. DAMAGE, WEAR OR CHANGES TO A CDCCL ITEM CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

ZONE: 550
ZONE: 650

1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	ACCESS PLATFORM 4M (13 FT)
No specific	AR	CAP - BLANKING
No specific	AR	CONTAINER 20L (5 USGAL)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SCRAPER - NON METALLIC
No specific	Torque wrench: range to between 30 and 25 lbf.in (0.34 and 0.28 m.daN )
No specific	Torque wrench: range to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )
97A28002117002	1	TOOL-PURGING

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06HAA1)	Coating Sealant-Fuel Tank Brushable -
(Material No.06LCG9)	Non Hardening Jointing Putty-Medium Temp. Area - -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
550	VENT SURGE TANK
650	VENT SURGE TANK
550CB, 650CB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	SEALING RING	AIPC 28-12-45-01-070

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-003-A	Pressure Refuel with Automatic Control
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 28-10-00-910-001-A	Safety Procedures When You Do Work in a Fuel Tank
TASK 28-10-00-910-002-A	Access to the Fuel Tanks and the Work Areas
TASK 28-12-44-000-004-A	Removal of the Check Valve
TASK 28-12-44-400-001-A	Installation of the Check Valve
TASK 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-650-003-A	To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01	To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-869-001-A	Fuel Transfer
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 57-17-11-000-001-A	Removal of Access Cover 147AZ(148AZ)
TASK 57-17-11-000-001-B	Removal of Access Cover 148AZ or/and the ACT-Equipment Support Door
TASK 57-17-11-400-001-A	Installation of Access Cover 147AZ(148AZ)
TASK 57-17-11-400-001-B	Installation of Access Cover 148AZ or/and the ACT-Equipment Support-Door
In-to-Wind and Out-of-Wind Dimensions
Panel Assembly 550CB (650CB) ** ON A/C NOT FOR ALL
Panel Assembly 550CB (650CB) ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-12-45-941-053-A

A. Safety Precautions

WARNING: BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.

(1) You must obey the fuel safety procedures when you do work in a fuel tank (Ref. AMM TASK 28-10-00-910-001) and (Ref. AMM TASK 28-10-00-910-002).
(2) Make sure that the SAFETY BARRIER(S) are in position.
(3) Make sure that the ground safety locks are installed on the landing gear (Ref. AMM TASK 32-00-00-481-001).

Subtask 28-12-45-860-051-A

B. Aircraft Maintenance Configuration
(1) Make sure that the fuel has been drained from the applicable vent surge tank (Ref. AMM TASK 28-25-00-650-003).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT) is below the applicable access panel:

for the left wing, below 550CB
for the right wing, below 650CB.

4. Procedure
Subtask 28-12-45-420-051-A

A. Preparation for Installation
(1) Examine the sealing ring (2) for damage, if necessary replace the sealing ring (2) as follows:
(a) Remove and discard the sealing ring (2).
(b) Remove the sealant from the sealing ring groove of the access panel (3) with a SCRAPER - NON METALLIC.
(c) Clean the access panel (3), its interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(d) Do an inspection of the component interfaces and the adjacent area.
(e) Apply a thin layer of Coating Sealant-Fuel Tank Brushable - (Material No.06HAA1) to the sealing ring groove of the access panel (3).
(f) While the sealant is wet install, flat edge down, the new AIPC 28-12-45-01-070 SEALING RING (2) in the groove of the access panel (3).
(g) Remove unwanted sealant from the access panel (3).
(2) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.
(5) Remove the cover from the overpressure protector (1).

Subtask 28-12-45-420-052-B ** ON A/C NOT FOR ALL

B. Installation of the Panel Assembly 550CB(650CB)
(1) Make sure that all of the bonding straps are correctly installed and attached (Ref. AMM TASK 20-28-00-912-802), before you install the access panel (3).
(2) Apply a thin layer of Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the bolts (4). Apply to the shank, the threads and below the head of each bolt (4).
(3) Put the access panel (3) in position and loosely install the bolts (4).
(4) TORQUE the bolts in the sequence A thru X, in two steps, to these values:
(a) Firstly, to between 30 and 25 lbf.in (0.34 and 0.28 m.daN )

.
(b) Secondly, to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )

.
(5) Make sure that the access panel (3) is correctly bonded to the wing skin (5):

WARNING: THIS INSTRUCTION IS APPLICABLE TO A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION (CDCCL) ITEM. CAREFULLY OBEY ALL GIVEN INSTRUCTIONS WHEN YOU DO THIS STEP. IF YOU DO NOT OBEY THESE INSTRUCTIONS, A DANGEROUS CONDITION CAN OCCUR THAT CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION.

(a) Do a bonding check between the access panel (3) and the wing skin (5) (Ref. AMM TASK 20-28-00-912-802). Make sure that the electrical resistance is less than 10 milliohms.
(6) Make sure that the DIM 'X' is between 0.5 mm (0.0197 in.) and 2.5 mm (0.0984 in.).
(7) Make sure that the maximum in-to-wind or out-of-wind dimensions are as follows:

In-to-Wind and Out-of-Wind Dimensions ** ON A/C NOT FOR ALL

(a) Along the long axis, between +/- 0.6 mm (0.024 in.).
(b) Along the short axis, for a distance of approximately 100 mm (3.94 in.), between +/- 0.3 mm (0.012 in.).

Subtask 28-12-45-420-052-C ** ON A/C NOT FOR ALL

B. Installation of the Panel Assembly 550CB(650CB)

CAUTION: MAKE SURE THAT THE VORTEX GENERATOR IS IN GOOD CONDITION AND INSTALLED ON THE ACCESS PANEL.

(1) Make sure that all the bonding straps are correctly installed before you install the access panel (3) (Ref. AMM TASK 20-28-00-912-802).
(2) Apply a thin layer of the Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the bolts (4). Apply to the shank, the threads and below the head of each bolt (4).
(3) Put the access panel (3) in position and loosely install the bolts (4).
(4) TORQUE the bolts (4) in the sequence A thru X as follows:
(a) Initially, to between 30 and 25 lbf.in (0.34 and 0.28 m.daN )

.
(b) Finally, to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )

.
(5) Make sure that the access panel (3) is correctly bonded to the wing skin (5):

(a) Do a bonding check between the access panel (3) and the wing skin (5) (Ref. AMM TASK 20-28-00-912-802).
(b) Make sure that the electrical resistance is less than 10 milliohms.
(6) Make sure that the DIMENSION 'X' is between 0.5 mm (0.020 in.) and 2.5 mm (0.098 in.).
(7) Make sure that the maximum in-to-wind or out-of-wind dimensions are as follows:

In-to-Wind and Out-of-Wind Dimensions ** ON A/C NOT FOR ALL

(a) Along the long axis, between +/- 0.6 mm (0.024 in.).
(b) Along the short axis, for a distance of approximately 100 mm (3.94 in.), between +/- 0.3 mm (0.012 in.).

Subtask 28-12-45-860-053-A ** ON A/C NOT FOR ALL

C. Aircraft Configuration for Test (Method 1 RH wing only)

NOTE: There are three alternative methods for the configuration for test.
Method 1 (RH wing):

Is for the RH wing only (no center-tank vent-pipe).

Method 2 (LH wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (LH wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the LH vent-surge tank to the center tank.

(1) Refuel the RH wing tank to full (Ref. AMM TASK 12-11-28-650-003) and keep the fuel tanker connected to the aircraft.
(2) Stop the operation of the fuel tanker.
(3) Put the CONTAINER 20L (5 USGAL) below water drain valve 22QM.
(4) Install the 97A28002117002 TOOL-PURGING on to water drain valve 22QM (Ref. AMM TASK 28-25-00-650-003).
(5) Set the fuel tanker to its lowest flow rate and pressure.
(6) On panel 800VU:
(a) Lift the guard and put the MODE SELECT switch to the REFUEL position.
(b) Lift the guard and put the RH wing-tank REFUEL VALVES switch to the OPEN position.
(c) Lift the guards and put the remaining REFUEL VALVES switches to the SHUT position.
(d) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the RH wing-tank HI LVL light goes out.

(7) Start the operation of the fuel tanker.
(8) Make sure that fuel flows into the RH vent surge-tank and out of water drain valve 22QM.
(9) On panel 800VU:

Release the TEST switch
Put the RH wing-tank REFUEL VALVES switch to the SHUT position.

(10) Make sure that the fuel flow from water drain valve 22QM decreases and then stops.
(11) Close water drain valve 22QM and remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(12) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable NACA vent in the surge tank.
(13) On panel 800VU:

Put the RH wing-tank REFUEL VALVES switch to the OPEN position
Put the TEST switch to the HI LVL position.

(14) Let 150 l (40 USgal) of fuel, measured at the tanker, flow into the RH vent surge-tank.
(15) Stop the operation of the fuel tanker.
(16) On panel 800VU:

Release the TEST switch
Put all of the REFUEL VALVES switches to the NORM and guarded position
Put the MODE SELECT switch to the OFF and guarded position.

Subtask 28-12-45-860-055-B ** ON A/C NOT FOR ALL

D. Aircraft Configuration for Test (Method 2 LH wing only)

NOTE: There are three alternative methods for the configuration for test.
Method 1 (RH wing):

Is for the RH wing only (no center-tank vent-pipe).

Method 2 (LH wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (LH wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the LH vent-surge tank to the center tank.

(1) For panel assembly 550CB (LH wing only):

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.

(a) Open the RH MLG door (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the MLG door actuating cylinder.
(c) Defuel the center tank (Ref. AMM TASK 28-25-00-650-001).
(d) Use the 97A28002117002 TOOL-PURGING and drain the remaining fuel from the center tank (Ref. AMM TASK 28-25-00-650-003).
(e) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below access panel 148AZ.
(f) Remove access panel 148AZ (Ref. AMM TASK 57-17-11-000-001), (Ref. AMM TASK 28-10-00-910-002).
(g) Install a CAP - BLANKING on the open end of the center-tank vent-pipe, inside the center tank.
(h) Remove check valve 93QM from the vent-pipe in the center-tank (Ref. AMM TASK 28-12-44-000-004).
(i) Install a CAP - BLANKING onto the open vent-pipe.
(2) Refuel the LH wing tank to full (Ref. AMM TASK 12-11-28-650-003) and keep the fuel tanker connected to the aircraft.
(3) Stop the operation of the fuel tanker.
(4) Put the CONTAINER 20L (5 USGAL) below water drain valve 21QM.
(5) Install the 97A28002117002 TOOL-PURGING on to water drain valve 21QM (Ref. AMM TASK 28-25-00-650-003).
(6) Set the fuel tanker to its lowest flow rate and pressure.
(7) On panel 800VU:
(a) Lift the guard and put the MODE SELECT switch to the REFUEL position.
(b) Lift the guard and put the LH wing-tank REFUEL VALVES switch to the OPEN position.
(c) Lift the guards and put the remaining REFUEL VALVES switches to the SHUT position.
(d) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the LH wing-tank HI LVL light goes out.

(8) Start the operation of the fuel tanker.
(9) Make sure that fuel flows into the LH vent surge-tank and out of water drain valve 21QM.
(10) On panel 800VU:

Release the TEST switch
Put the LH wing-tank REFUEL VALVES switch to the SHUT position.

(11) Make sure that the fuel flow from water drain valve 21QM decreases and then stops.
(12) Close water drain valve 21QM and remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(13) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable NACA vent in the surge tank.
(14) On panel 800VU:

Put the LH wing-tank REFUEL VALVES switch to the OPEN position
Put and hold the TEST switch to the HI LVL position.

(15) Let 150 l (40 USgal) of fuel, measured at the tanker, flow into the LH vent surge-tank.
(16) Stop the operation of the fuel tanker.
(17) On panel 800VU:

Release the TEST switch
Put all of the REFUEL VALVES switches to the NORM and guarded position
Put the MODE SELECT switch to the OFF and guarded position.

Subtask 28-12-45-860-056-B ** ON A/C NOT FOR ALL

E. Aircraft Configuration for Test (Method 3 LH wing only)

NOTE: There are three alternative methods for the configuration for test.
Method 1 (RH wing):

Is for the RH wing only (no center-tank vent-pipe).

Method 2 (LH wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (LH wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the LH vent-surge tank to the center tank.

(1) For panel assembly 550CB (LH wing only):
(a) Refuel the center tank to full (Ref. AMM TASK 12-11-28-650-003).
(2) Refuel the LH wing tank to full (Ref. AMM TASK 12-11-28-650-003) and keep the fuel tanker connected to the aircraft.
(3) Stop the operation of the fuel tanker.
(4) Put the CONTAINER 20L (5 USGAL) below water drain valve 21QM.
(5) Install the 97A28002117002 TOOL-PURGING on to water drain valve 21QM (Ref. AMM TASK 28-25-00-650-003).
(6) Set the fuel tanker to its lowest flow rate and pressure.
(7) On panel 800VU:
(a) Lift the guard and put the MODE SELECT switch to the REFUEL position.
(b) Lift the guard and put the LH wing-tank REFUEL VALVES switch to the OPEN position.
(c) Lift the guards and put the remaining REFUEL VALVES switches to the SHUT position.
(d) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the LH wing-tank HI LVL light goes out.

(8) Start the operation of the fuel tanker.
(9) Make sure that fuel flows into the LH vent surge-tank and out of water drain valve 21QM.
(10) On panel 800VU:

Release the TEST switch
Put the LH wing-tank REFUEL VALVES switch to the SHUT position.

(11) Make sure that the fuel flow from water drain valve 21QM decreases and then stops.
(12) On panel 800VU:
(a) Put the center-tank REFUEL VALVES switch to the OPEN position.
(b) Make sure that the remaining REFUEL VALVES switches are in the SHUT position.
(c) Put the TEST switch to the HI LVL position:

Make sure that the center-tank HI LVL light goes out.

(13) Start the operation of the fuel tanker.
(14) Make sure that fuel flows into the LH vent surge tank and out of water drain valve 21QM.
(15) On panel 800VU:

Release the TEST switch
Put the center-tank REFUEL VALVES switch to the SHUT position.

(16) Make sure that the fuel flow from water drain valve 21QM decreases and then stops.
(17) Close the water drain valve and remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(18) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable NACA vent in the surge tank.
(19) On panel 800VU:

Put the LH wing-tank REFUEL VALVES switch to the OPEN position
Put and hold the TEST switch to the HI LVL position.

(20) Let 150 l (40 USgal) of fuel, measured at the tanker, flow into the LH vent surge-tank.
(21) Stop the operation of the fuel tanker.
(22) On panel 800VU:

Release the TEST switch
Put all of the REFUEL VALVES switches to the NORM and guarded position
Put the MODE SELECT switch to the OFF and guarded position.

Subtask 28-12-45-860-053-B ** ON A/C NOT FOR ALL

F. Aircraft Configuration for Test (Method 1 RH wing only)

NOTE: There are four alternative methods for the configuration for test.
Method 1 (RH wing):

Is for the RH wing only (no center-tank vent-pipe).

Method 2 (LH wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (LH wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the LH vent-surge tank to the center tank.

Method 4 (LH(RH) wing):

Is with the LH(RH) inner and outer tanks full and the center tank contains a minimum of 800 kg (1800 lb) of fuel.

(1) Refuel the RH wing tank to full (Ref. AMM TASK 12-11-28-650-003) and keep the fuel tanker connected to the aircraft.
(2) Stop the operation of the fuel tanker.
(3) Put the CONTAINER 20L (5 USGAL) below the water drain valve 22QM.
(4) Install the 97A28002117002 TOOL-PURGING on to the water drain valve 22QM (Ref. AMM TASK 28-25-00-650-003).
(5) Set the fuel tanker to its lowest flow rate and pressure.
(6) On the panel 800VU:
(a) Lift the guard and put the MODE SELECT switch to the REFUEL position.
(b) Lift the guard and put the RH wing-tank REFUEL VALVES switch to the OPEN position.
(c) Lift the guards and put the remaining REFUEL VALVES switches to the SHUT position.
(d) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the RH wing-tank HI LVL light goes out.

(7) Start the operation of the fuel tanker.
(8) Make sure that fuel flows into the RH vent surge tank and out of the water drain valve 22QM.
(9) On the panel 800VU:

Release the TEST switch
Put the RH wing-tank REFUEL VALVES switch to the SHUT position.

(10) Make sure that the fuel flow from the water drain valve 22QM decreases and then stops.
(11) Close the water drain valve 22QM and remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(12) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable NACA vent in the surge tank.
(13) On the panel 800VU:

Put the RH wing-tank REFUEL VALVES switch to the OPEN position
Put the TEST switch to the HI LVL position.

(14) Let 150 l (39.6255 USgal) of fuel, measured at the tanker, flow into the RH vent surge tank.
(15) Stop the operation of the fuel tanker.
(16) On the panel 800VU:

Release the TEST switch
Put all of the REFUEL VALVES switches to the NORM and guarded position
Put the MODE SELECT switch to the OFF and guarded position.

Subtask 28-12-45-860-055-A ** ON A/C NOT FOR ALL

G. Aircraft Configuration for Test (Method 2 LH wing only)

NOTE: There are four alternative methods for the configuration for test.
Method 1 (RH wing):

Is for the RH wing only (no center-tank vent-pipe).

Method 2 (LH wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (LH wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the LH vent-surge tank to the center tank.

Method 4 (LH(RH) wing):

Is with the LH(RH) inner and outer tanks full and the center tank contains a minimum of 800 kg (1800 lb) of fuel.

(1) For the panel assembly 550CB (LH wing only):

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.

(a) Open the RH MLG door (Ref. AMM TASK 32-12-00-010-001).
(b) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the MLG door actuating cylinder.
(c) Defuel the center tank (Ref. AMM TASK 28-25-00-650-001).
(d) Use the 97A28002117002 TOOL-PURGING and drain the remaining fuel from the center tank (Ref. AMM TASK 28-25-00-650-003).
(e) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below the access panel 148AZ.
(f) Remove the access panel 148AZ (Ref. AMM TASK 57-17-11-000-001), (Ref. AMM TASK 28-10-00-910-002).
(g) Install a CAP - BLANKING on the open end of the center-tank vent-pipe, inside the center tank.
(h) Remove the check valve 93QM from the vent-pipe in the center-tank (Ref. AMM TASK 28-12-44-000-004).
(i) Install a CAP - BLANKING onto the open vent-pipe.
(2) Refuel the LH wing tank to full (Ref. AMM TASK 12-11-28-650-003) and keep the fuel tanker connected to the aircraft.
(3) Stop the operation of the fuel tanker.
(4) Put the CONTAINER 20L (5 USGAL) below the water drain valve 21QM.
(5) Install the 97A28002117002 TOOL-PURGING on to the water drain valve 21QM (Ref. AMM TASK 28-25-00-650-003).
(6) Set the fuel tanker to its lowest flow rate and pressure.
(7) On the panel 800VU:
(a) Lift the guard and put the MODE SELECT switch to the REFUEL position.
(b) Lift the guard and put the LH wing-tank REFUEL VALVES switch to the OPEN position.
(c) Lift the guards and put the remaining REFUEL VALVES switches to the SHUT position.
(d) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the LH wing-tank HI LVL light goes out.

(8) Start the operation of the fuel tanker.
(9) Make sure that fuel flows into the LH vent surge tank and out of the water drain valve 21QM.
(10) On the panel 800VU:

Release the TEST switch
Put the LH wing-tank REFUEL VALVES switch to the SHUT position.

(11) Make sure that the fuel flow from the water drain valve 21QM decreases and then stops.
(12) Close the water drain valve 21QM and remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(13) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable NACA vent in the surge tank.
(14) On the panel 800VU:

Put the LH wing-tank REFUEL VALVES switch to the OPEN position
Put and hold the TEST switch to the HI LVL position.

(15) Let 150 l (39.6255 USgal) of fuel, measured at the tanker, flow into the LH vent surge tank.
(16) Stop the operation of the fuel tanker.
(17) On the panel 800VU:

Release the TEST switch
Put all of the REFUEL VALVES switches to the NORM and guarded position
Put the MODE SELECT switch to the OFF and guarded position.

Subtask 28-12-45-860-056-A ** ON A/C NOT FOR ALL

H. Aircraft Configuration for Test (Method 3 LH wing only)

NOTE: There are four alternative methods for the configuration for test.
Method 1 (RH wing):

Is for the RH wing only (no center-tank vent-pipe).

Method 2 (LH wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (LH wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the LH vent-surge tank to the center tank.

Method 4 (LH(RH) wing):

Is with the LH(RH) inner and outer tanks full and the center tank contains a minimum of 800 kg (1800 lb) of fuel.

(1) For the panel assembly 550CB (LH wing only):
(a) Refuel the center tank to full (Ref. AMM TASK 12-11-28-650-003).
(2) Refuel the LH wing tank to full (Ref. AMM TASK 12-11-28-650-003) and keep the fuel tanker connected to the aircraft.
(3) Stop the operation of the fuel tanker.
(4) Put the CONTAINER 20L (5 USGAL) below the water drain valve 21QM.
(5) Install the 97A28002117002 TOOL-PURGING on to the water drain valve 21QM (Ref. AMM TASK 28-25-00-650-003).
(6) Set the fuel tanker to its lowest flow rate and pressure.
(7) On the panel 800VU:
(a) Lift the guard and put the MODE SELECT switch to the REFUEL position.
(b) Lift the guard and put the LH wing-tank REFUEL VALVES switch to the OPEN position.
(c) Lift the guards and put the remaining REFUEL VALVES switches to the SHUT position.
(d) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the LH wing-tank HI LVL light goes out.

(8) Start the operation of the fuel tanker.
(9) Make sure that fuel flows into the LH vent surge tank and out of the water drain valve 21QM.
(10) On the panel 800VU:

Release the TEST switch
Put the LH wing-tank REFUEL VALVES switch to the SHUT position.

(11) Make sure that the fuel flow from the water drain valve 21QM decreases and then stops.
(12) On the panel 800VU:
(a) Put the center-tank REFUEL VALVES switch to the OPEN position.
(b) Make sure that the remaining REFUEL VALVES switches are in the SHUT position.
(c) Put the TEST switch to the HI LVL position:

Make sure that the center-tank HI LVL light goes out.

(13) Start the operation of the fuel tanker.
(14) Make sure that fuel flows into the LH vent surge tank and out of the water drain valve 21QM.
(15) On the panel 800VU:

Release the TEST switch
Put the center-tank REFUEL VALVES switch to the SHUT position.

(16) Make sure that the fuel flow from the water drain valve 21QM decreases and then stops.
(17) Close the water drain valve and remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(18) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable NACA vent in the surge tank.
(19) On the panel 800VU:

Put the LH wing-tank REFUEL VALVES switch to the OPEN position
Put and hold the TEST switch to the HI LVL position.

(20) Let 150 l (39.6255 USgal) of fuel, measured at the tanker, flow into the LH vent surge tank.
(21) Stop the operation of the fuel tanker.
(22) On the panel 800VU:

Release the TEST switch
Put all of the REFUEL VALVES switches to the NORM and guarded position
Put the MODE SELECT switch to the OFF and guarded position.

Subtask 28-12-45-860-057-A ** ON A/C NOT FOR ALL

I. Aircraft Configuration for Alternative Leak Test (Method 4 Left (Right) Wing)

NOTE: There are four alternative methods for the configuration for test.
Method 1 (Right wing):

Is for the right wing only (no center-tank vent-pipe).

Method 2 (Left wing):

Is with the center tank empty and the center-tank vent-pipe blanked.

Method 3 (Left wing):

Is with the center tank full.
Methods 2 and 3 prevent the gravity feed of fuel from the left vent surge-tank to the center tank.

Method 4 (Left (right) wing):

Is with the left (right) inner and outer tanks full and the center tank contains a minimum of 800 kg (1764 lb) of fuel.

(1) Make sure that the left (right) inner and outer tanks are full:
(a) If necessary, transfer fuel from the center tank to the left (right) inner and outer tanks to high level (Ref. AMM TASK 28-25-00-869-001).
(b) Make sure that the center tank contains a minimum of 800 kg (1764 lb) of fuel.
(2) Put the CONTAINER 20L (5 USGAL) below water drain-valve 21QM (22QM).
(3) Install the 97A28002117002 TOOL-PURGING on water drain-valve 21QM (22QM) (Ref. AMM TASK 28-25-00-650-003).
(4) In the cockpit, on FUEL panel 40VU:
(a) Push (in) the X FEED pushbutton switch (4QE) to open the crossfeed valve.
(5) On refuel/defuel control-panel 800VU:
(a) Lift the guard and put the left (right) wing-tank REFUEL VALVE switch to the OPEN position.
(b) Put the TEST switch to the HI LVL position and hold it there:

Make sure that the left (right) wing-tank HI LVL light goes out.

(6) In the cockpit, on FUEL panel 40VU:
(a) Release (out) the MODE SEL pushbutton switch:

Make sure that the MAN light comes on.

NOTE: You can only transfer fuel from the center tank with the center tank pumps in manual control.

(b) Push (in) the CTR TK PUMP 1 (2) pushbutton switch to transfer 160 kg (353 lb) of fuel into the left (right) vent surge-tank:

Make sure that fuel flows out of water drain-valve 21QM (22QM).
Make sure that the OFF light goes off.

Make sure that the OFF light comes on.

(7) Drain the left (right) surge tank fully (Ref. AMM TASK 28-25-00-650-003).
(8) Make sure that the left (right) vent surge-tank is empty.
(9) Close water drain-valve 21QM (22QM).
(10) Remove the 97A28002117002 TOOL-PURGING (Ref. AMM TASK 28-25-00-650-003).
(11) In the cockpit, on FUEL panel 40VU:
(a) Push (in) the CTR TK PUMP 1 (2) pushbutton switch to transfer 120 kg (265 lb) of fuel from the center tank.
(b) Make sure that the quantity of fuel transfer from the center tank is not more than 120 kg (265 lb).
(c) Make sure that the OFF light goes off.
(12) On the ECAM lower display-unit, carefully monitor the fuel quantity indications.
(13) When the fuel quantity indications are correct, on FUEL panel 40VU:
(a) Release (out) the CTR TK PUMP 1 (2) pushbutton switch to stop the left (right) center-tank pump:

Make sure that the OFF light comes on.

(b) Push (in) the MODE SEL pushbutton switch:

Make sure that the MAN light goes off.

(14) On refeul/defuel control-panel 800VU:
(a) Release the TEST switch.
(b) Put the left (right) wing-tank REFUEL VALVE switch to the SHUT position.
(15) In the cockpit, on FUEL panel 40VU:

CAUTION: BEFORE YOU CLOSE THE CROSSFEED VALVE, MAKE SURE THAT THE FUEL PUMP(S) IS(ARE) OFF. THIS WILL PREVENT DAMAGE TO THE CROSSFEED VALVE.

(a) Release (out) the X FEED pushbutton switch (4QE) to close the crossfeed valve.

Subtask 28-12-45-790-051-A

J. Leak Test
(1) Examine the applicable panel assembly for leaks.

5. Close-up
Subtask 28-12-45-860-054-B ** ON A/C NOT FOR ALL

A. Aircraft Configuration
(1) For the panel assembly 650CB (RH wing only), when the configuration for test method 1 was used:
(a) You must defuel or transfer a minimum of 250 kg (551.1555 lb) of fuel from the wing tank. Defuel or transfer fuel as necessary (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

NOTE: When there is sufficient space available, all the fuel in the vent surge tank will move into the wing tank.

(2) For the panel assembly 550CB (LH wing only), when the configuration for test method 2 was used (center tank empty):
(a) Drain the fuel from the vent surge tank (Ref. AMM TASK 28-25-00-650-003).
(b) Put a CONTAINER 20L (5 USGAL) in position below the blank in the end of the center-tank vent-pipe.

WARNING: BE CAREFUL WHEN YOU REMOVE THE BLANK FROM THE CENTER-TANK VENT-PIPE. FUEL WILL SPILL OUT.

(c) Carefully remove the blank from the end of the center-tank vent-pipe, inside the center tank. Collect any spilt fuel in the container.
(d) Carefully remove the container from the center-tank.
(e) Remove the blank from the vent-pipe and install the check valve 93QM (Ref. AMM TASK 28-12-44-400-001).

CAUTION: MAKE SURE THAT ALL THE BLANKS INSTALLED IN THE FUEL TANKS FOR THIS PROCEDURE ARE REMOVED. IF THE BLANKS ARE NOT REMOVED, THEY CAN CAUSE STRUCTURAL DAMAGE.

(f) Make sure that the work area is clean and clear of tools and other items.
(g) Install the access panel 148AZ (Ref. AMM TASK 57-17-11-400-001).
(h) Remove the access platform from the RH MLG bay.
(i) Remove the 460005835 SLEEVE - GROUND LOCK from the MLG door actuator.
(j) Close the RH MLG door (Ref. AMM TASK 32-12-00-410-001).
(k) Defuel or transfer fuel as necessary (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
(3) For the panel assembly 550CB (LH wing only), when the configuration for test method 3 was used (center tank full):
(a) You must defuel or transfer a minimum of 250 kg (551.1555 lb) of fuel from the wing tank. Defuel or transfer fuel as necessary (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

NOTE: When there is sufficient space available, all the fuel in the vent surge tank will move into the wing tank.

Subtask 28-12-45-860-054-C ** ON A/C NOT FOR ALL

A. Aircraft Configuration
(1) For the panel assembly 650CB (RH wing only), when the configuration for test method 1 was used:
(a) You must defuel or transfer a minimum of 650 kg (1433.0043 lb) of fuel from the wing tank. Defuel or transfer fuel as necessary (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

NOTE: When there is sufficient space available, all the fuel in the vent surge tank will move into the wing tank.

WARNING: BE CAREFUL WHEN YOU REMOVE THE BLANK FROM THE CENTER-TANK VENT-PIPE. FUEL WILL SPILL OUT.

CAUTION: MAKE SURE THAT ALL THE BLANKS INSTALLED IN THE FUEL TANKS FOR THIS PROCEDURE ARE REMOVED. IF THE BLANKS ARE NOT REMOVED, THEY CAN CAUSE STRUCTURAL DAMAGE.

(f) Make sure that the work area is clean and clear of tools and other items.
(g) Install the access panel 148AZ (Ref. AMM TASK 57-17-11-400-001).
(h) Remove the access platform from the RH MLG bay.
(i) Remove the 460005835 SLEEVE - GROUND LOCK from the MLG door actuator.
(j) Close the RH MLG door (Ref. AMM TASK 32-12-00-410-001).
(k) Defuel or transfer fuel as necessary (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
(3) For the panel assembly 550CB (LH wing only), when the configuration for test method 3 was used (center tank full):
(a) You must defuel or transfer a minimum of 650 kg (1433.0043 lb) of fuel from the wing tank. Defuel or transfer fuel as necessary (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

NOTE: When there is sufficient space available, all the fuel in the vent surge tank will move into the wing tank.

Subtask 28-12-45-942-051-A

B. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the container from below the applicable water drain valve.
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 07:19:25 UTC