Installation of the Fuel Pump Canister

TASK 28-21-52-400-001-A
Installation of the Fuel Pump Canister

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

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: 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: 540
ZONE: 640
FIN: 1QM
FIN: 4QM

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	SAFETY BARRIER(S)
No specific	Torque wrench: range to between 0.9 and 0.8 m.daN (79.65 and 70.80 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.01ABA1)	Turbine Fuel-- Kerosene -
(Material No.03FAB1)	Mineral Oil base Grease-- Vaseline or Petrolatum -
(Material No.06ABA1)	Polysulfide Sealant-Fuel Tank Brushable -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
540	FUEL TANK
640	FUEL TANK
540AB, 540BZ, 640AB, 640BZ
FOR [1QM] (CANISTER-FUEL PUMP, L WING TK OUTR)
540AB, 540BZ
FOR [4QM] (CANISTER-FUEL PUMP, R WING TANK OUTER)
640AB, 640BZ

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
8	SEALING RING	AIPC 28-21-05-27-040
3	O-RING	AIPC 28-21-05-27-120
22	O-RING	AIPC 28-21-05-28-160
26	O-RING	AIPC 28-21-05-28-160
18	O-RING	AIPC 28-21-05-29-120
20	O-RING	AIPC 28-21-05-29-120
32	O-RING	AIPC 28-21-05-35-070
8	SEALING RING	AIPC 28-21-85-22-040
3	O-RING	AIPC 28-21-85-22-230
26	O-RING	AIPC 28-21-85-23-200
20	O-RING	AIPC 28-21-85-24-050
32	O-RING	AIPC 28-21-85-26-070

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 28-21-43-400-002-A	Installation of the Fuel-Pump Check-Valve
TASK 28-21-45-400-003-A	Installation of the Sequence Valve
TASK 28-21-51-000-001-A	Removal of the Fuel Pumps
TASK 28-21-51-400-001-A	Installation of the Fuel Pumps
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 57-27-11-000-001-A	Removal of the Access Panel
TASK 57-27-11-400-001-A	Installation of the Access Panel
TASK 57-27-12-000-002-A	Removal of the Rib 2 Access Panel 540AZ(640AZ) or 540BZ(640BZ)
Fuel-Pump Canister 1QM (4QM) and 2QM (3QM) ** ON A/C NOT FOR ALL
Fuel-Pump Canister 1QM (4QM) and 2QM (3QM) ** ON A/C NOT FOR ALL
FOR [1QM] (CANISTER-FUEL PUMP, L WING TK OUTR)
TASK 57-27-11-400-001-A	Installation of the Access Panel
TASK 57-27-12-400-002-A	Installation of the Rib 2 Access Panel 540AZ (640AZ) or 540BZ (640BZ)
FOR [4QM] (CANISTER-FUEL PUMP, R WING TANK OUTER)
TASK 57-27-11-400-001-A	Installation of the Access Panel
TASK 57-27-12-400-002-A	Installation of the Rib 2 Access Panel 540AZ (640AZ) or 540BZ (640BZ)

3. Job Set-up
Subtask 28-21-52-941-061-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).
(2) Make sure that the SAFETY BARRIER(S)S are in position.

Subtask 28-21-52-865-050-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	FUEL/CTR TK/PUMP2 SPLY	30QA	P26
121VU	FUEL/CTR TK/PUMP1 SPLY	29QA	P23
** ON A/C ALL
121VU	FUEL/L WING TK/PUMP2 SPLY	7QA	N26
121VU	FUEL/L WING TK/PUMP1 SPLY	1QA	N23
121VU	FUEL/R WING TK/PUMP2 SPLY	8QA	Q26
121VU	FUEL/R WING TK/PUMP1 SPLY	2QA	Q23
123VU	L WING TK/PUMP 1/STBY SPLY	11QA	AD12
123VU	R WING TK/PUMP 1/STBY SPLY	12QA	AE12

Subtask 28-21-52-860-050-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the applicable fuel tank is defueled (Ref. AMM TASK 28-25-00-650-001).
(2) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is below the applicable access panel 540AB 640AB.
(4) Make sure that the applicable access panel 540AB 640AB is removed (Ref. AMM TASK 57-27-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
(5) Make sure that the applicable RIB 2 surge door 540BZ 640BZ is open and that the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) is installed on the door.

Subtask 28-21-52-860-050-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Make sure that the applicable fuel tank is defueled (Ref. AMM TASK 28-25-00-650-001).
(2) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is below the applicable access panel 540AB ( 640AB).
(4) Make sure that the applicable access panel 540AB ( 640AB) is removed (Ref. AMM TASK 57-27-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
(5) Make sure that the applicable RIB2 access panel 540BZ ( 640BZ) is removed (Ref. AMM TASK 57-27-12-000-002).
(6) Make sure that the applicable fuel pump 21QA (26QA) is removed (Ref. AMM TASK 28-21-51-000-001).

4. Procedure
Subtask 28-21-52-560-050-A ** ON A/C NOT FOR ALL

A. Preparation for a Replacement Component
(1) Lubricate the new AIPC 28-21-05-27-120 O-RING (3) with Turbine Fuel-- Kerosene - (Material No.01ABA1) or Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) .
(2) Install the new O-ring (3).
(3) Install the reducer (4).
(4) Install the sequence valve (Ref. AMM TASK 28-21-45-400-003).

Subtask 28-21-52-420-056-A ** ON A/C NOT FOR ALL

B. Preparation for Installation
(1) Clean the component interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Lubricate the new items that follow with Turbine Fuel-- Kerosene - (Material No.01ABA1) or Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) :

Subtask 28-21-52-560-050-C ** ON A/C NOT FOR ALL

C. Preparation for a Replacement Component
(1) Lubricate the new AIPC 28-21-05-27-120 O-RING (3) with Turbine Fuel-- Kerosene - (Material No.01ABA1) or Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) .
(2) Install the new O-ring (3).
(3) Install the reducer (4).
(4) Install the check valve (Ref. AMM TASK 28-21-43-400-002).

Subtask 28-21-52-420-056-B ** ON A/C NOT FOR ALL

D. Preparation for Installation
(1) Clean the component interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Lubricate the new items that follow with Turbine Fuel-- Kerosene - (Material No.01ABA1) or Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) :

Subtask 28-21-52-560-050-E ** ON A/C NOT FOR ALL

E. Preparation for a Replacement Component
(1) Lubricate the new AIPC 28-21-05-27-120 O-RING (3) or AIPC 28-21-85-22-230 O-RING (3) with Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) .
(2) Install the new O-ring (3).
(3) Install the reducer (4).
(4) Install the check valve (Ref. AMM TASK 28-21-43-400-002).

Subtask 28-21-52-420-056-C ** ON A/C NOT FOR ALL

F. Preparation for Installation
(1) Clean the component interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Lubricate the new items that follow with Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) :

Subtask 28-21-52-420-050-D ** ON A/C NOT FOR ALL

G. Installation of Fuel-Pump Canister 1QM (4QM)
(1) Install the new sealing ring (8) and the new O-rings (18) and (22).
(2) Engage the connectors (1) and (2), while you put the canister (7) in position.
(3) You must bond one of the screws (6) (Ref. AMM TASK 20-28-00-912-802).
(4) TORQUE the screws (6) to between 0.9 and 0.8 m.daN (79.65 and 70.80 lbf.in )

.
(5) Make sure that one of the screws (6) is correctly bonded:

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 of one of the screws (6) (Ref. AMM TASK 20-28-00-912-802):
1 The bonding resistance must be less than 10 milliohms.
(6) Install the connector (1) with the bolts (21) and the nuts (20).
(7) You must bond one of the screws (6) (Ref. AMM TASK 20-28-00-912-802).
(8) Make sure that one of the bolts (21) is correctly bonded:

(a) Do a bonding check between one of the bolts (21) and the canister (7) (Ref. AMM TASK 20-28-00-912-802):
1 The bonding resistance must be less than 10 milliohms.
(9) Install the connector (2) with the bolts (23) and the nuts (24).
(10) Install the pipe (5).

Subtask 28-21-52-420-050-E ** ON A/C NOT FOR ALL

G. Installation of the Fuel Pump Canister 1QM(4QM)
(1) Install the new sealing ring (8) and the new O-rings (20), (26) and (32).
(2) Engage the connectors (1), (2) and (10), while you put the canister (7) in position.
(3) Install the canister (7) with the screws (6).

NOTE: You must bond one of the screws (6) (Ref. AMM TASK 20-28-00-912-802).

(4) TORQUE the screws (6) to between 0.9 and 0.8 m.daN (79.65 and 70.80 lbf.in )

.
(5) Make sure that one of the screws (6) is correctly bonded:

(a) Do a bonding check of one of the screws (6) (Ref. AMM TASK 20-28-00-912-802). The bonding resistance must be less than 10 milliohms.
(6) Install the connector (1) with the bolts (22) and the nuts (21).

NOTE: You must bond one of the bolts (22) (Ref. AMM TASK 20-28-00-912-802).

(7) Make sure that one of the bolts (22) is correctly bonded:

(a) Do a bonding check between one of the bolts (22) and the canister (7) (Ref. AMM TASK 20-28-00-912-802). The bonding resistance must be less than 10 milliohms.
(8) Install the connector (2) with the bolts (27) and the nuts (25).
(9) Install the bolt (28), the bonding tab (23) and the nut (24) (Ref. AMM TASK 20-28-00-912-802).
(10) Make sure that the bonding tab (23) is correctly bonded:

(a) Do a bonding check between the bonding tab (23) and the canister (7) (Ref. AMM TASK 20-28-00-912-802). The bonding resistance must be less than 10 milliohms.
(11) Install the connector (10) with the bolts (34) and the nuts (31).
(12) Install the bolt (35), the bonding tab (29) and the nut (30) (Ref. AMM TASK 20-28-00-912-802).
(13) Make sure that the bonding tab (29) is correctly bonded:

(a) Do a bonding check between the bonding tab (29) and the canister (7) (Ref. AMM TASK 20-28-00-912-802). The bonding resistance must be less than 10 milliohms.
(14) Install the pipe (5).
(15) Apply Polysulfide Sealant-Fuel Tank Brushable - (Material No.06ABA1) to the bolts (22), (27) and (34) and the nuts (21), (25) and (31).

5. Close-up
Subtask 28-21-52-410-053-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) Remove the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) and carefully close the applicable RIB 2 surge door:
(a) FOR [1QM] (CANISTER-FUEL PUMP, L WING TK OUTR)
540BZ
(b) FOR [4QM] (CANISTER-FUEL PUMP, R WING TANK OUTER)
640BZ.
(3) Install the applicable wing access panel (Ref. AMM TASK 57-27-11-400-001):

(a) FOR [1QM] (CANISTER-FUEL PUMP, L WING TK OUTR)
install 540AB
(b) FOR [4QM] (CANISTER-FUEL PUMP, R WING TANK OUTER)
install 640AB.
(4) Install the applicable fuel pump 21QA(26QA) (Ref. AMM TASK 28-21-51-400-001).

Subtask 28-21-52-410-053-B ** 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) Install the applicable fuel pump 21QA (26QA) (Ref. AMM TASK 28-21-51-400-001).
(3) Install the applicable RIB2 access panels that follow:
(a) FOR [1QM] (CANISTER-FUEL PUMP, L WING TK OUTR)
Install 540BZ (Ref. AMM TASK 57-27-12-400-002).
(b) FOR [4QM] (CANISTER-FUEL PUMP, R WING TANK OUTER)
Install 640BZ (Ref. AMM TASK 57-27-12-400-002).
(4) Install the applicable wing access panels that follow:
(a) FOR [1QM] (CANISTER-FUEL PUMP, L WING TK OUTR)
Install 540AB (Ref. AMM TASK 57-27-11-400-001).
(b) FOR [4QM] (CANISTER-FUEL PUMP, R WING TANK OUTER)
Install 640AB (Ref. AMM TASK 57-27-11-400-001).

Subtask 28-21-52-865-056-A

B. 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
121VU	FUEL/CTR TK/PUMP2 SPLY	30QA	P26
121VU	FUEL/CTR TK/PUMP1 SPLY	29QA	P23
** ON A/C ALL
121VU	FUEL/L WING TK/PUMP2 SPLY	7QA	N26
121VU	FUEL/L WING TK/PUMP1 SPLY	1QA	N23
121VU	FUEL/R WING TK/PUMP2 SPLY	8QA	Q26
121VU	FUEL/R WING TK/PUMP1 SPLY	2QA	Q23
123VU	L WING TK/PUMP 1/STBY SPLY	11QA	AD12
123VU	R WING TK/PUMP 1/STBY SPLY	12QA	AE12

Subtask 28-21-52-650-056-A

C. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

Subtask 28-21-52-942-051-A

D. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:17:27 UTC