DOC AIRBUS | AMM A320FRemoval of the Fuel Nozzles [CFMI]
TASK 73-11-40-000-001-A
Removal of the Fuel Nozzles
1. Reason for the Job
There are 20 fuel nozzles installed in each engine. You can use this procedure to remove one or more of the fuel nozzles.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 73-11-40-941-050-A ** ON A/C NOT FOR ALL
Subtask 73-11-40-020-051-A ** ON A/C NOT FOR ALL
To remove the fuel nozzles in positions 6, 7 or 9, do steps 3.A. thru 3.B.
(2) Remove the air start tube (10) as follows:
(a) Remove the bolts (150), nuts (170) and the strap clamp (140) from the upper middle bracket and the air start tube (10).
(b) Remove the bolt (150), washer (130) and nuts (170) that attach the loop clamp (200) to the upper bracket. Remove the clamp (200) from the air start tube (10).
(c) Cut and remove the lockwire from the bolts (180) that attach the end of the air start tube (10) to the combustion case boss.
Remove the bolts (180).
(d) Remove the E-seal (190) from between the end of the air start tube (10) and the combustion case boss.
(e) Remove the bolts (210) and nuts (50) from the end of the air start tube (10) that attaches to the HPT Clearance Control Valve (HPTCC).
(f) Remove the gasket (220) from between the end of the air start tube (10) and the HPTCC valve.
(g) Remove the air start tube (10).
(h) Install COVER - PROTECTION on the open ends of the air start tube (10), the open bosses of the combustion case and the HPTCC valve.
(3) Remove the LPT clearance control discharge tube (LPTCC) (30) as follows:
(a) Remove the bolt (110), washer (100) and nut (90) that attach the (LPTCC) discharge tube (30) to the LPT discharge bracket (70).
(b) Remove the forward clamp (20) from the end of the LPTCC discharge tube (30).
(c) Carefully pull the forward part of the discharge tube (30) away from the aft part and remove the tube (30).
(d) Install COVER - PROTECTION on the open ends of the discharge tube (30) and the open end of the LPTCC valve.
(4) Remove the HPTCC manifold as follows:
(b) Remove the bolts (150) and the strap clamp (160) from the manifold (40) and the lower middle bracket.
(c) Remove the bolts (150), nuts (170) and the strap clamp (160) from the manifold (40) and the lower bracket.
(d) Cut and remove the lockwire from the bolts (230) that attach the manifold (40) to the lower combustion case boss. Remove the bolts (230).
(e) Remove the C-seal (240) from between the end of the manifold (40) and the lower combustion case boss.
(f) Cut and remove the lockwire from the bolts (230) that attach the manifold (40) to the upper combustion case boss. Remove the bolts (230).
(g) Remove the C-seal (250) from between the end of the manifold (40) and the upper combustion case boss.
(h) Remove the bolts (80, 120), washers (130) (if applicable), and nuts (50) (if applicable), that attach the manifold (40), LPT discharge bracket (70) and the HPTCC valve.
(i) Remove the discharge bracket (70).
(j) Remove the C-seal (60) from between the end of the manifold (40) and the valve.
(k) Remove the manifold (40).
(l) Install COVER - PROTECTION on the open ends of the manifold (40), the open bosses of the combustion case and the clearance control valve.
Subtask 73-11-40-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:04:44 UTC
Removal of the Fuel Nozzles
1. Reason for the Job
There are 20 fuel nozzles installed in each engine. You can use this procedure to remove one or more of the fuel nozzles.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | CONTAINER 1 L (1/4 USGAL) |
| No specific | AR | COVER - PROTECTION |
| No specific | AR | PLIERS - NOSE, SOFT, LONG |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2162) | liquid wrench |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-040-A | Opening of the Fan Cowl Doors |
| TASK 72-00-00-200-005-A | Over-Serviceable-Limit Extensions |
| TASK 72-42-00-290-001-A | Borescope Inspection of the Combustion Chamber Liners and Dome Area |
| TASK 78-30-00-481-041-A | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-36-00-010-040-A | Opening of the Thrust Reverser Doors |
Installation of the Fuel Nozzles (sheet 1 of 3)Subtask 73-11-40-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 73-11-40-010-050-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Get Access
(1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 73-11-40-040-050-A ** ON A/C NOT FOR ALL Subtask 73-11-40-010-052-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
D. Open the thrust reserver doors: (Ref. AMM TASK 78-36-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 73-11-40-020-051-A ** ON A/C NOT FOR ALL
WARNING:
BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES.
IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER.
IF NECESSARY, GET MEDICAL HELP.
AIRCRAFT FUEL IS POISONOUS.
WARNING:
USE A CORRECT CONTAINER AND KEEP THE CONTAINER AWAY FROM FLAMES SO THAT FIRES DO NOT OCCUR.
A. Removal of the Fuel Nozzle. NOTE: To make the removal of some of the fuel nozzles easier, you must remove some of the external engine hardware.
(1) To remove the fuel nozzles in positions 1, 2, 3, 4, 5, 8, 10, 11, 12, 14, 15, 16, 17, 19 and 20, start at step 3.D. To remove the fuel nozzles in positions 6, 7 or 9, do steps 3.A. thru 3.B.
(2) Remove the air start tube (10) as follows:
(a) Remove the bolts (150), nuts (170) and the strap clamp (140) from the upper middle bracket and the air start tube (10).
(b) Remove the bolt (150), washer (130) and nuts (170) that attach the loop clamp (200) to the upper bracket. Remove the clamp (200) from the air start tube (10).
(c) Cut and remove the lockwire from the bolts (180) that attach the end of the air start tube (10) to the combustion case boss.
Remove the bolts (180).
(d) Remove the E-seal (190) from between the end of the air start tube (10) and the combustion case boss.
(e) Remove the bolts (210) and nuts (50) from the end of the air start tube (10) that attaches to the HPT Clearance Control Valve (HPTCC).
(f) Remove the gasket (220) from between the end of the air start tube (10) and the HPTCC valve.
(g) Remove the air start tube (10).
(h) Install COVER - PROTECTION on the open ends of the air start tube (10), the open bosses of the combustion case and the HPTCC valve.
(3) Remove the LPT clearance control discharge tube (LPTCC) (30) as follows:
(a) Remove the bolt (110), washer (100) and nut (90) that attach the (LPTCC) discharge tube (30) to the LPT discharge bracket (70).
(b) Remove the forward clamp (20) from the end of the LPTCC discharge tube (30).
(c) Carefully pull the forward part of the discharge tube (30) away from the aft part and remove the tube (30).
(d) Install COVER - PROTECTION on the open ends of the discharge tube (30) and the open end of the LPTCC valve.
(4) Remove the HPTCC manifold as follows:
CAUTION:
BE CAREFUL WITH THE HPTCC MANIFOLD. IT IS COVERED WITH INSULATION FOIL THAT CAN BE EASILY CUT OR DENTED. DO NOT DAMAGE THE INSULATION FOIL.
(a) Remove the bolts (150), nuts (170) and the strap clamp (160) from the manifold (40) and the upper middle bracket. (b) Remove the bolts (150) and the strap clamp (160) from the manifold (40) and the lower middle bracket.
(c) Remove the bolts (150), nuts (170) and the strap clamp (160) from the manifold (40) and the lower bracket.
(d) Cut and remove the lockwire from the bolts (230) that attach the manifold (40) to the lower combustion case boss. Remove the bolts (230).
(e) Remove the C-seal (240) from between the end of the manifold (40) and the lower combustion case boss.
(f) Cut and remove the lockwire from the bolts (230) that attach the manifold (40) to the upper combustion case boss. Remove the bolts (230).
(g) Remove the C-seal (250) from between the end of the manifold (40) and the upper combustion case boss.
(h) Remove the bolts (80, 120), washers (130) (if applicable), and nuts (50) (if applicable), that attach the manifold (40), LPT discharge bracket (70) and the HPTCC valve.
(i) Remove the discharge bracket (70).
(j) Remove the C-seal (60) from between the end of the manifold (40) and the valve.
(k) Remove the manifold (40).
(l) Install COVER - PROTECTION on the open ends of the manifold (40), the open bosses of the combustion case and the clearance control valve.
B. Remove the fuel nozzles as follows:
(2) Apply a small amount of liquid wrench (Material No.CP2162) to the bolts (280, 310) that attach the fuel nozzles to the combustion case. Permit the Liquid Wrench to soak for approximately 5 minutes.
(3) Disconnect the fuel nozzle drain tube from the side of the drain shroud.
(4) Cut and remove the lockwire on the fuel nozzle drain shroud connector. Loosen the connector. If necessary, use PLIERS - NOSE, SOFT, LONG to loosen the connectors. Move the shroud back.
(5) Disconnect the fuel supply tube coupling nut from the fuel nozzle.
(6) Remove and discard the O-ring (270) from the shroud.
(7) Remove and discard the O-ring (260) from the fuel nozzle.
(8) Cut and remove the lockwire from the fuel supply tube coupling nut. Disconnect the coupling nut from the fuel nozzle.
(9) If conical seals are installed on the fuel nozzles, remove and discard the conical seals.
(10) Cut and remove the lockwire from the bolts (280, 310) that attach the fuel nozzles to the combustion case.
(12) Remove the fuel nozzles at positions 1, 5, 7, 9, 11, 15, 17 and 19 as follows:
(a) Remove the bolts (310) that attach the nozzles to the combustion case.
(b) Remove the fuel nozzle from the combustion case as follows:
(d) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(13) Remove the fuel nozzles at positions 2, 4, 6, 10, 12, 14, 16 and 20 as follows:
(14) Remove the bolts (280) that attach the hinge bracket to the nozzles and move the bracket away from the nozzles.
(a) Remove the bolts (280) that attach the hinge bracket to the nozzles and move the bracket away from the nozzles.
(b) Remove the remaining bolt (310) from the nozzle.
(c) Remove the fuel nozzle from the combustion case as follows:
(e) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(15) Remove the fuel nozzles at positions 8 and 18 as follows:
(a) Remove the bolts (280) that attach the LPT cooling bracket (320) to the hinge bracket and the nozzle.
(b) Remove the cooling bracket (320) and move the hinge bracket away from the nozzle.
(c) Remove the remaining bolt (310) from the nozzle.
(d) Remove the nozzle from the combustion case as follows:
(f) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(16) Remove the fuel nozzles at positions 3 and 13 as follows:
(a) Remove the bolts (280) that attach the LPT cooling bracket (330) to the nozzle.
(b) Remove the cooling bracket (330).
(c) Remove the remaining bolt (310) from the nozzle.
(d) Remove the nozzle from the combustion case as follows:
(f) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(g) Install COVER - PROTECTION on the fuel nozzles and the combustion case bosses.
NOTE: The fuel nozzles are given position numbers in a clockwise (CW) sequence when you look at them from the aft of the engine.
Position and nozzle number 1 are at the 12 o'clock position.
(1) Put a CONTAINER 1 L (1/4 USGAL) below the fuel nozzle(s) you must remove to catch the fuel leakage Position and nozzle number 1 are at the 12 o'clock position.
(2) Apply a small amount of liquid wrench (Material No.CP2162) to the bolts (280, 310) that attach the fuel nozzles to the combustion case. Permit the Liquid Wrench to soak for approximately 5 minutes.
(3) Disconnect the fuel nozzle drain tube from the side of the drain shroud.
(4) Cut and remove the lockwire on the fuel nozzle drain shroud connector. Loosen the connector. If necessary, use PLIERS - NOSE, SOFT, LONG to loosen the connectors. Move the shroud back.
(5) Disconnect the fuel supply tube coupling nut from the fuel nozzle.
(6) Remove and discard the O-ring (270) from the shroud.
(7) Remove and discard the O-ring (260) from the fuel nozzle.
(8) Cut and remove the lockwire from the fuel supply tube coupling nut. Disconnect the coupling nut from the fuel nozzle.
(9) If conical seals are installed on the fuel nozzles, remove and discard the conical seals.
(10) Cut and remove the lockwire from the bolts (280, 310) that attach the fuel nozzles to the combustion case.
NOTE: Keep the bolts and the brackets for each nozzle position together so the fuel nozzles will be more easily installed.
(11) Make a record of the part number, serial number and the position of the nozzles that you removed. (12) Remove the fuel nozzles at positions 1, 5, 7, 9, 11, 15, 17 and 19 as follows:
(a) Remove the bolts (310) that attach the nozzles to the combustion case.
(b) Remove the fuel nozzle from the combustion case as follows:
- Move the nozzle forward to disengage the tip of the nozzle from the combustor swirl cup.
- Turn the nozzle CW while you move the top of the nozzle towards the combustion case.
(d) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(13) Remove the fuel nozzles at positions 2, 4, 6, 10, 12, 14, 16 and 20 as follows:
(14) Remove the bolts (280) that attach the hinge bracket to the nozzles and move the bracket away from the nozzles.
(a) Remove the bolts (280) that attach the hinge bracket to the nozzles and move the bracket away from the nozzles.
(b) Remove the remaining bolt (310) from the nozzle.
(c) Remove the fuel nozzle from the combustion case as follows:
- Move the nozzle forward to disengage the tip of the nozzle from the combustor swirl cup.
- Turn the nozzle CW while you move the top of the nozzle toward the combustion case.
(e) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(15) Remove the fuel nozzles at positions 8 and 18 as follows:
(a) Remove the bolts (280) that attach the LPT cooling bracket (320) to the hinge bracket and the nozzle.
(b) Remove the cooling bracket (320) and move the hinge bracket away from the nozzle.
(c) Remove the remaining bolt (310) from the nozzle.
(d) Remove the nozzle from the combustion case as follows:
- Move the nozzle forward to disengage the tip of the nozzle from the combustor swirl cup.
- Turn the nozzle CW while you move the top of the nozzle toward the combustion case.
(f) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(16) Remove the fuel nozzles at positions 3 and 13 as follows:
(a) Remove the bolts (280) that attach the LPT cooling bracket (330) to the nozzle.
(b) Remove the cooling bracket (330).
(c) Remove the remaining bolt (310) from the nozzle.
(d) Remove the nozzle from the combustion case as follows:
- Move the nozzle forward to disengage the tip of the nozzle from the combustor swirl cup.
- Turn the nozzle CW while you move the top of the nozzle toward the combustion case.
(f) Visually inspect the fuel nozzle wear sleeves.
1 If wear sleeves are dislodged, they are not serviceable. Replace fuel nozzles and borescope inspect for down stream damage (Ref. AMM TASK 72-42-00-290-001) or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
2 If wear sleeves have 4 interrupted weld design, they are not serviceable. Replace the fuel nozzles or see Over-Serviceable-Limits extensions (Ref. AMM TASK 72-00-00-200-005).
(g) Install COVER - PROTECTION on the fuel nozzles and the combustion case bosses.