DOC AIRBUS | TSM A320FFuel - Unwanted Material (Debris) In The Center-Tank Fuel Installation
TASK 28-11-00-810-810-A
Fuel - Unwanted Material (Debris) In The Center-Tank Fuel Installation
A. Referenced Information
3. Fault Confirmation
Subtask 28-11-00-710-060-B
Subtask 28-11-00-810-059-B ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:28:26 UTC
Fuel - Unwanted Material (Debris) In The Center-Tank Fuel Installation
WARNING:
OBEY THE FUEL SAFETY PROCEDURES.
1. Possible Causes- the remains of something broken or thus come loose from inside the aircraft fuel-tanks
- a quantity of pieces
something discarded (FOD or rubbish) - fuel-pump strainer
- STRAINER-JET PUMP L, CENTER TANK [220QM]
- STRAINER-JET PUMP R, CENTER TANK [221QM]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 28-11-00-810-808-A | Fuel - Unwanted Material (Debris) In The Left (Right) Wing Fuel-Tank Collector-Cell Installation |
| AMM 28-11-00-600-003 | Removal of Microbiological Particles |
| AMM 28-12-00-200-001 | Inspection of the Tank Venting System |
| AMM 28-12-41-000-003 | Removal of the Overpressure Protector |
| AIPC 282105 | |
| AMM 28-21-51-000-002 | Removal of the Fuel Pumps |
| AMM 28-21-51-400-002 | Installation of the Fuel Pumps |
| AMM 28-21-52-000-003 | Removal of the Fuel Pump Canister |
| AMM 28-21-52-400-003 | Installation of the Fuel Pump Canister |
| AMM 28-21-53-000-002 | Removal of the Jet Pump |
| AMM 28-25-45-000-001 | Removal of the Center-Tank Pressure-Relief Valve |
| AMM 28-26-42-000-001 | Removal of the Jet Pump Strainer |
| AMM 28-26-42-400-001 | Installation of the Jet Pump Strainer |
| AMM 28-42-15-000-002 | Removal of the Center Tank Fuel-Quantity-Probe |
| AMM 28-42-15-000-004 | Removal of the Center (Transfer) Tank Fuel-Quantity Probes |
| AMM 28-42-16-000-002 | Removal of the Cadensicon |
| AMM 28-42-47-000-001 | Removal of the Ultracomp |
| AMM 28-46-15-000-004 | Removal of the Center-Tank Fuel-Level Sensors |
Subtask 28-11-00-710-060-B
A. Test
(1) No test is applicable.
You have found unwanted material (debris).
4. Fault Isolation(1) No test is applicable.
You have found unwanted material (debris).
NOTE: For the purpose of this TSM procedure unwanted material (debris) is an item that must not be there. It can include the items that follow:
It does not include microbiological contamination/particles.
For the Removal of Mocrobiological Particles do the procedure AMM 28-11-00-600-003.
(2) Try to identify the unwanted material and its source. - the remains of something broken or thus come loose from inside the aircraft fuel-tanks (example, a section of fuel-tank sealing compound)
- a quantity of pieces (example, sealant, an old tie-wrap or locking wire)
something discarded (FOD or rubbish) (example, a paper towel, a cleaning rag, a coin or tool).
It does not include microbiological contamination/particles.
For the Removal of Mocrobiological Particles do the procedure AMM 28-11-00-600-003.
NOTE: If you know what the unwanted material is, and thus its possible source, it can save you a lot of time.
(3) Go to Para. 4.A. NOTE: The procedure that follows is a guide to help you troubleshoot for unwanted material. It is not a full investigation that would require all LRUs and fuel space to be examined.
Subtask 28-11-00-810-059-B ** ON A/C NOT FOR ALL
A. Procedure
(1) Do a visual (or complete the) inspection of the fuel-pump and the inside of its related canister (at the original location) for signs of:
Make sure that good lighting is available.
(a) Install a serviceable fuel-pump AMM 28-21-51-400-002.
(b) Continue with your original AMM/TSM Task or, if applicable, return the aircraft to service.
(3) Do the steps that follow:
(a) Remove the other (second) fuel-pump on the opposite side of the center-tank AMM 28-21-51-000-002.
(b) At the second location, do a visual inpection of the fuel-pump and canister as given in step (1).
1 If:
(a) Install the serviceable fuel-pump AMM 28-21-51-400-002 at the second location.
(b) At the first location.
1 Remove all the unwanted material/debris at the fuel-pump and/or canister.
2 Replace the damaged/unserviceable fuel-pump AMM 28-21-51-000-002 AMM 28-21-51-400-002 and/or canister AMM 28-21-52-000-003 AMM 28-21-52-400-003.
3 Get access to the related fuel-pump strainer AIPC 282105 Fig 01 item 170, AMM 28-21-52-000-003.
4 Do a visual inspection of the fuel-pump strainer and look for unwanted material.
5 Remove all the unwanted material.
6 If the fuel-pump strainer AIPC 282105 Fig 01 item 170, is found to be unserviceable, replace it AMM 28-21-52-000-003 and AMM 28-21-52-400-003.
(c) Continue with your original AMM/TSM Task or, if applicable, return the aircraft to service.
(5) Do the steps that follow:
(a) Remove all the unwanted material/debris at each fuel-pump and/or canister.
(b) Replace all the damaged/unserviceable fuel-pumps AMM 28-21-51-000-002 AMM 28-21-51-400-002 and/or canisters AMM 28-21-52-000-003 AMM 28-21-52-400-003.
(c) Go to step (6).
(6) Because unwanted material was found at each of the fuel-pump locations (during steps (1) and (3)) more troubleshooting steps are necessary. These steps are to find (and remove) the possible source of the unwanted material. This will stop (or reduce) the possible ingestion of more unwanted material from the center-tank.
(a) Get access to the related fuel-pump strainers AIPC 282105 Fig 01 item 170, AMM 28-21-52-000-003.
1 Do a visual inspection of the fuel-pump strainers and look for unwanted material.
2 Remove all the unwanted material.
3 If the fuel-pump strainers are found to be unserviceable, replace them AMM 28-21-52-000-003 and AMM 28-21-52-400-003.
(b) Get access to the left rear of the center-tank for:
2 Do a visual inspection, of the jet-pump, feed and collector pipe-line locations for unwanted material and remove if found.
(c) Get access to the rear wall/bulkhead of the center-tank (from the inside).
1 Do a visual inspection in the locations of the fuel related valves, refuel gallery and cross-feed pipe-lines, for unwanted material.
a Remove all the unwanted material if found.
(d) Get access to the right rear of the center-tank for
a Remove all the unwanted material.
2 Do a visual inspection, of the jet-pump, feed and collector pipe-line locations for unwanted material and remove if found.
(e) Get access to the center-tank vent.
1 Do a visual inspection for unwanted material in the vent AMM 28-12-00-200-001.
a Remove all the unwanted material.
(f) Get access to:
(g) Do a visual inspection (for unwanted material) of the whole tank floor. Do this inspection in the areas that have not been given in the steps done before.
1 Remove all the unwanted material.
(h) Continue with your original AMM/TSM Task or, if applicable, return the aircraft to service.
Subtask 28-11-00-810-059-D ** ON A/C NOT FOR ALL (1) Do a visual (or complete the) inspection of the fuel-pump and the inside of its related canister (at the original location) for signs of:
- unwanted material
- possible damaged caused by unwanted material.
Make sure that good lighting is available.
NOTE: Damage Definitions.
Fuel-pump possible damage could be one of the items that follow:
Canister possible damage could be one of the items that follow (to the internal surface of the canister, the slide and the interface surface with pump):
(a) If: Fuel-pump possible damage could be one of the items that follow:
- distortion and marring
- wear, cracks, burrs, scores
- corrosion
- erosion of the impeller.
Canister possible damage could be one of the items that follow (to the internal surface of the canister, the slide and the interface surface with pump):
- distortion and marring
- wear, cracks, burrs, scores
- corrosion.
- no unwanted material or damaged is found, do step (2)
- unwanted material and/or damage is found, do step (3).
(a) Install a serviceable fuel-pump AMM 28-21-51-400-002.
(b) Continue with your original AMM/TSM Task or, if applicable, return the aircraft to service.
(3) Do the steps that follow:
(a) Remove the other (second) fuel-pump on the opposite side of the center-tank AMM 28-21-51-000-002.
(b) At the second location, do a visual inpection of the fuel-pump and canister as given in step (1).
1 If:
- no unwanted material or damaged is found, do step (4)
- unwanted material and/or damage is found, do step (5).
(a) Install the serviceable fuel-pump AMM 28-21-51-400-002 at the second location.
(b) At the first location.
1 Remove all the unwanted material/debris at the fuel-pump and/or canister.
2 Replace the damaged/unserviceable fuel-pump AMM 28-21-51-000-002 AMM 28-21-51-400-002 and/or canister AMM 28-21-52-000-003 AMM 28-21-52-400-003.
3 Get access to the related fuel-pump strainer AIPC 282105 Fig 01 item 170, AMM 28-21-52-000-003.
4 Do a visual inspection of the fuel-pump strainer and look for unwanted material.
5 Remove all the unwanted material.
6 If the fuel-pump strainer AIPC 282105 Fig 01 item 170, is found to be unserviceable, replace it AMM 28-21-52-000-003 and AMM 28-21-52-400-003.
(c) Continue with your original AMM/TSM Task or, if applicable, return the aircraft to service.
(5) Do the steps that follow:
(a) Remove all the unwanted material/debris at each fuel-pump and/or canister.
(b) Replace all the damaged/unserviceable fuel-pumps AMM 28-21-51-000-002 AMM 28-21-51-400-002 and/or canisters AMM 28-21-52-000-003 AMM 28-21-52-400-003.
(c) Go to step (6).
(6) Because unwanted material was found at each of the fuel-pump locations (during steps (1) and (3)) more troubleshooting steps are necessary. These steps are to find (and remove) the possible source of the unwanted material. This will stop (or reduce) the possible ingestion of more unwanted material from the center-tank.
(a) Get access to the related fuel-pump strainers AIPC 282105 Fig 01 item 170, AMM 28-21-52-000-003.
1 Do a visual inspection of the fuel-pump strainers and look for unwanted material.
2 Remove all the unwanted material.
3 If the fuel-pump strainers are found to be unserviceable, replace them AMM 28-21-52-000-003 and AMM 28-21-52-400-003.
(b) Get access to the left rear of the center-tank for:
- the overpressure protector 96QM AMM 28-12-41-000-003
- the jet-pump 89QM system installation AMM 28-21-53-000-002.
2 Do a visual inspection, of the jet-pump, feed and collector pipe-line locations for unwanted material and remove if found.
(c) Get access to the rear wall/bulkhead of the center-tank (from the inside).
1 Do a visual inspection in the locations of the fuel related valves, refuel gallery and cross-feed pipe-lines, for unwanted material.
a Remove all the unwanted material if found.
(d) Get access to the right rear of the center-tank for
- the pressure relief valve 97QM AMM 28-25-45-000-001
- the jet-pump 90QM system installation AMM 28-21-53-000-002.
a Remove all the unwanted material.
2 Do a visual inspection, of the jet-pump, feed and collector pipe-line locations for unwanted material and remove if found.
(e) Get access to the center-tank vent.
1 Do a visual inspection for unwanted material in the vent AMM 28-12-00-200-001.
a Remove all the unwanted material.
(f) Get access to:
- the cadensicon 20QT AMM 28-42-16-000-002
- the level sensors 20QJ, 21QJ and 22QJ AMM 28-46-15-000-004
- the fuel quantity probes 35QT, 36QT, 37QT, 38QT and 39QT AMM 28-42-15-000-002.
- the probe support brackets
- the cable harness 17QT to items 20QJ, 21QJ, 20QT, 36QT, 37QT and 38QT connections
- the cable harness 18QT to items 22QJ, 35QT and 39QT connections
- the tank floor directly below the sensors/probes.
(g) Do a visual inspection (for unwanted material) of the whole tank floor. Do this inspection in the areas that have not been given in the steps done before.
1 Remove all the unwanted material.
(h) Continue with your original AMM/TSM Task or, if applicable, return the aircraft to service.
A. Procedure
(1) Make sure that good lighting is available during all visual inspections given in this procedure.
(2) Get access to the center-tank left jet-pump strainer 220QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 220QM and look for unwanted material:
1 During the removal and installation subtask of the jet-pump 157QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
(c) If unwanted material was found inside the jet-pump 157QM and/or its output pipe, do the TSM procedure (for the related left wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(3) Get access to the center-tank right jet-pump strainer 221QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 221QM and look for unwanted material:
1 During the removal and installation subtask of the jet-pump 158QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
(c) If unwanted material was found inside the jet-pump 158QM and/or its output pipe, do the TSM procedure (for the related right wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(4) Do the steps that follow:
(a) Get access to the overpressure protector 96QM AMM 28-12-41-000-003.
1 Do a visual inspection, of the overpressure protector, for unwanted material AMM 28-12-00-200-001.
2 Make sure that no unwanted material is in the collecting grid.
a Remove all the unwanted material.
(b) Get access to the rear wall/bulkhead of the center-tank (from the inside).
1 Do a visual inspection in the locations of the fuel related valves, refuel gallery and cross-feed pipe-lines, for unwanted material.
a Remove all the unwanted material.
(c) Get access to the pressure relief valve 97QM AMM 28-25-45-000-001.
1 Do a visual inspection, of the pressure relief valve, for unwanted material.
2 Make sure that no unwanted material has become caught in the valve which could hold it open.
a Remove all the unwanted material.
(d) Get access to the center-tank vent.
1 Do a visual inspection for unwanted material in the vent AMM 28-12-00-200-001.
a Remove all the unwanted material.
(e) Get access to:
(f) Do a visual inspection (for unwanted material) of the whole tank floor. Do this inspection in the areas that have not been given in the steps done before.
1 Remove all the unwanted material.
(5) If during the internal inspection of the jet-pump 157QM(158QM) and output pipes (in work steps (2) and (3):
Subtask 28-11-00-810-059-E ** ON A/C NOT FOR ALL (1) Make sure that good lighting is available during all visual inspections given in this procedure.
(2) Get access to the center-tank left jet-pump strainer 220QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 220QM and look for unwanted material:
- if necessary, remove all the unwanted material
- if the jet-pump strainer is found to be serviceable, go to step (3)
- if the jet-pump strainer is found to be unserviceable, go to step (b).
1 During the removal and installation subtask of the jet-pump 157QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
- the inside of the jet-pump 157QM
- the output pipe towards the (left wing) Rib1.
(c) If unwanted material was found inside the jet-pump 157QM and/or its output pipe, do the TSM procedure (for the related left wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(3) Get access to the center-tank right jet-pump strainer 221QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 221QM and look for unwanted material:
- if necessary, remove all the unwanted material
- if the jet-pump strainer is found to be serviceable, go to step (4)
- if the jet-pump strainer is found to be unserviceable, go to step (b).
1 During the removal and installation subtask of the jet-pump 158QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
- the inside of the jet-pump 158QM
- the output pipe towards the (right wing) Rib1.
(c) If unwanted material was found inside the jet-pump 158QM and/or its output pipe, do the TSM procedure (for the related right wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(4) Do the steps that follow:
(a) Get access to the overpressure protector 96QM AMM 28-12-41-000-003.
1 Do a visual inspection, of the overpressure protector, for unwanted material AMM 28-12-00-200-001.
2 Make sure that no unwanted material is in the collecting grid.
a Remove all the unwanted material.
(b) Get access to the rear wall/bulkhead of the center-tank (from the inside).
1 Do a visual inspection in the locations of the fuel related valves, refuel gallery and cross-feed pipe-lines, for unwanted material.
a Remove all the unwanted material.
(c) Get access to the pressure relief valve 97QM AMM 28-25-45-000-001.
1 Do a visual inspection, of the pressure relief valve, for unwanted material.
2 Make sure that no unwanted material has become caught in the valve which could hold it open.
a Remove all the unwanted material.
(d) Get access to the center-tank vent.
1 Do a visual inspection for unwanted material in the vent AMM 28-12-00-200-001.
a Remove all the unwanted material.
(e) Get access to:
- the ultracomp 50QT AMM 28-42-47-000-001
- the level sensors 20QJ, 21QJ and 22QJ AMM 28-46-15-000-004
- the fuel quantity probes 35QT, 36QT, 37QT, 38QT, and 51QT AMM 28-42-15-000-004.
- the probe support brackets
- the cable harness 17QT to items 20QJ, 21QJ, 36QT, 37QT, 38QT and 50QT connections
- the cable harness 18QT to items 22QJ, 35QT, 50QT and 51QT connections
- the tank floor directly below the sensors/probes.
(f) Do a visual inspection (for unwanted material) of the whole tank floor. Do this inspection in the areas that have not been given in the steps done before.
1 Remove all the unwanted material.
(5) If during the internal inspection of the jet-pump 157QM(158QM) and output pipes (in work steps (2) and (3):
- no unwanted material was found, continue with your original AMM/TSM Task or, if applicable, return the aircraft to service
- unwanted material was found, do the TSM procedure for Unwanted Material (Debris) In The Left (Right) Wing Fuel-Tank Collector-Cell Installation (Ref. TSM TASK 28-11-00-810-808).
A. Procedure
(1) Make sure that good lighting is available during all visual inspections given in this procedure.
(2) Get access to the center-tank left jet-pump strainer 220QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 220QM and look for unwanted material:
1 During the removal and installation subtask of the jet-pump 157QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
(c) If unwanted material was found inside the jet-pump 157QM and/or its output pipe, do the TSM procedure (for the related left wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(3) Get access to the center-tank right jet-pump strainer 221QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 221QM and look for unwanted material:
1 During the removal and installation subtask of the jet-pump 158QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
(c) If unwanted material was found inside the jet-pump 158QM and/or its output pipe, do the TSM procedure (for the related right wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(4) Do the steps that follow:
(a) Get access to the overpressure protector 96QM AMM 28-12-41-000-003.
1 Do a visual inspection, of the overpressure protector, for unwanted material AMM 28-12-00-200-001.
2 Make sure that no unwanted material is in the collecting grid.
a Remove all the unwanted material.
(b) Get access to the rear wall/bulkhead of the center-tank (from the inside).
1 Do a visual inspection in the locations of the fuel related valves, refuel gallery and cross-feed pipe-lines, for unwanted material.
a Remove all the unwanted material.
(c) Get access to the pressure relief valve 97QM AMM 28-25-45-000-001.
1 Do a visual inspection, of the pressure relief valve, for unwanted material.
2 Make sure that no unwanted material has become caught in the valve which could hold it open.
a Remove all the unwanted material.
(d) Get access to the center-tank vent.
1 Do a visual inspection for unwanted material in the vent AMM 28-12-00-200-001.
a Remove all the unwanted material.
(e) Get access to:
(f) Do a visual inspection (for unwanted material) of the whole tank floor. Do this inspection in the areas that have not been given in the steps done before.
1 Remove all the unwanted material.
(5) If during the internal inspection of the jet-pump 157QM(158QM) and output pipes (in work steps (2) and (3):
(1) Make sure that good lighting is available during all visual inspections given in this procedure.
(2) Get access to the center-tank left jet-pump strainer 220QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 220QM and look for unwanted material:
- If necessary, remove all the unwanted material
- If the jet-pump strainer is found to be serviceable, go to step (3)
- If the jet-pump strainer is found to be unserviceable, go to step (b).
1 During the removal and installation subtask of the jet-pump 157QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
- The inside of the jet-pump 157QM
- The output pipe towards the (left wing) Rib1.
(c) If unwanted material was found inside the jet-pump 157QM and/or its output pipe, do the TSM procedure (for the related left wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(3) Get access to the center-tank right jet-pump strainer 221QM AMM 28-26-42-000-001.
(a) Do a visual inspection of the jet-pump strainer 221QM and look for unwanted material:
- If necessary, remove all the unwanted material
- If the jet-pump strainer is found to be serviceable, go to step (4)
- If the jet-pump strainer is found to be unserviceable, go to step (b).
1 During the removal and installation subtask of the jet-pump 158QM AMM 28-26-42-000-001 do an internal visual inspection, for unwanted material, of the items that follow:
- The inside of the jet-pump 158QM
- The output pipe towards the (right wing) Rib1.
(c) If unwanted material was found inside the jet-pump 158QM and/or its output pipe, do the TSM procedure (for the related right wing collector-cell (Ref. TSM TASK 28-11-00-810-808)) when you have completed this task.
(4) Do the steps that follow:
(a) Get access to the overpressure protector 96QM AMM 28-12-41-000-003.
1 Do a visual inspection, of the overpressure protector, for unwanted material AMM 28-12-00-200-001.
2 Make sure that no unwanted material is in the collecting grid.
a Remove all the unwanted material.
(b) Get access to the rear wall/bulkhead of the center-tank (from the inside).
1 Do a visual inspection in the locations of the fuel related valves, refuel gallery and cross-feed pipe-lines, for unwanted material.
a Remove all the unwanted material.
(c) Get access to the pressure relief valve 97QM AMM 28-25-45-000-001.
1 Do a visual inspection, of the pressure relief valve, for unwanted material.
2 Make sure that no unwanted material has become caught in the valve which could hold it open.
a Remove all the unwanted material.
(d) Get access to the center-tank vent.
1 Do a visual inspection for unwanted material in the vent AMM 28-12-00-200-001.
a Remove all the unwanted material.
(e) Get access to:
- The ultracomp 50QT AMM 28-42-47-000-001
- The level sensors 20QJ, 21QJ and 22QJ AMM 28-46-15-000-004
- The fuel quantity probes 35QT, 36QT, 37QT, 38QT, and 51QT AMM 28-42-15-000-004.
- The probe support brackets
- The cable harness 17QT to items 20QJ, 21QJ, 36QT, 37QT, 38QT and 50QT connections
- The cable harness 18QT to items 22QJ, 35QT, 50QT and 51QT connections
- The tank floor directly below the sensors/probes.
(f) Do a visual inspection (for unwanted material) of the whole tank floor. Do this inspection in the areas that have not been given in the steps done before.
1 Remove all the unwanted material.
(5) If during the internal inspection of the jet-pump 157QM(158QM) and output pipes (in work steps (2) and (3):
- No unwanted material was found, continue with your original AMM/TSM Task or, if applicable, return the aircraft to service
- Unwanted material was found, do the TSM procedure for Unwanted Material (Debris) In The Left (Right) Wing Fuel-Tank Collector-Cell Installation (Ref. TSM TASK 28-11-00-810-808).