DOC AIRBUS | AMM A320FReplace the Hi-Lok Fasteners on the Oil Filler Door Oversize Fasteners - VRS2741 [IAE]
TASK 71-13-14-300-013-A
Replace the Hi-Lok Fasteners on the Oil Filler Door Oversize Fasteners - VRS2741
This repair can only be done with the repair for replacing the hinges - VRS2849.
This task gives the procedure for replacement of the Hi-Lok fasteners on the oil filler access door with oversize fasteners.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 71-13-14-941-055-A ** ON A/C NOT FOR ALL
Subtask 71-13-14-220-055-A ** ON A/C NOT FOR ALL
Subtask 71-13-14-410-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:56:21 UTC
Replace the Hi-Lok Fasteners on the Oil Filler Door Oversize Fasteners - VRS2741
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 400
1. Reason for the JobThis repair can only be done with the repair for replacing the hinges - VRS2849.
This task gives the procedure for replacement of the Hi-Lok fasteners on the oil filler access door with oversize fasteners.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-076) | Methyl Ethyl Ketone, Technical grade |
| (Material No.V04-005) | jointing compound |
| (Material No.V06-131) | marking pen |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | HI-LOK PINS | AIPC 71-13-14-80-200 |
| 3 | WASHERS | AIPC 71-13-14-80-210 |
| 4 | HI-LOK COLLARS | AIPC 71-13-14-80-220 |
| 1 | HINGE | AIPC 71-13-14-80-280 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
Replace the Fasteners with Oversize Fasteners on the Oil Filler Access DoorSubtask 71-13-14-941-055-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 71-13-14-010-055-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 cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
4. Procedure(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 71-13-14-220-055-A ** ON A/C NOT FOR ALL
A. Examine the Oil Filler Access Door and the Hinge
(1) Compare the position of the holes in the hinge (1) with the holes in the access door.
(2) The holes in the hinge (1) must be used as a template. If the holes in the access door do not align with the holes in the hinge (1), oversize hi-loks must be used.
(3) Examine the holes in the access door and the hinge (1).
(a) The diameter of the holes must not be greater than 0.206 in. (5.23 mm).
(b) If the diameter of the holes is not in this limit do not use this repair.
(4) Make a mark beside each hole that has a diameter between 0.200 in. (5.08 mm) and 0.206 in. (5.23 mm). Use a marking pen (Material No.V06-131) .
(5) Make a mark beside all holes that are not aligned with the holes in the access door.
Subtask 71-13-14-350-059-A ** ON A/C NOT FOR ALL (1) Compare the position of the holes in the hinge (1) with the holes in the access door.
(2) The holes in the hinge (1) must be used as a template. If the holes in the access door do not align with the holes in the hinge (1), oversize hi-loks must be used.
(3) Examine the holes in the access door and the hinge (1).
(a) The diameter of the holes must not be greater than 0.206 in. (5.23 mm).
(b) If the diameter of the holes is not in this limit do not use this repair.
(4) Make a mark beside each hole that has a diameter between 0.200 in. (5.08 mm) and 0.206 in. (5.23 mm). Use a marking pen (Material No.V06-131) .
(5) Make a mark beside all holes that are not aligned with the holes in the access door.
B. Increase the Hole Sizes for Oversize Hi-Lok Pins
(1) Use the DRILL DIA 0.203 IN (5.16 MM) - ONE SHOT to increase the diameter of the holes in the hinge (1) that have a mark beside them.
(2) Make sure that the diameter of these holes is between 0.202 in. (5.13 mm) and 0.206 in. (5.23 mm).
(3) Use temporary fasteners to hold the access door and the hinge (1) together. Make sure that the parts are in the correct position.
(4) Remove the temporary fasteners in sequence and use the DRILL DIA 0.203 IN (5.16 MM) - ONE SHOT to drill through the holes in the hinge (1) and the access door.
(5) Make sure that the diameter of the holes are between 0.202 in. (5.13 mm) and 0.206 in. (5.23 mm).
(6) Disassemble and remove:
Subtask 71-13-14-110-059-A ** ON A/C NOT FOR ALL (1) Use the DRILL DIA 0.203 IN (5.16 MM) - ONE SHOT to increase the diameter of the holes in the hinge (1) that have a mark beside them.
(2) Make sure that the diameter of these holes is between 0.202 in. (5.13 mm) and 0.206 in. (5.23 mm).
(3) Use temporary fasteners to hold the access door and the hinge (1) together. Make sure that the parts are in the correct position.
(4) Remove the temporary fasteners in sequence and use the DRILL DIA 0.203 IN (5.16 MM) - ONE SHOT to drill through the holes in the hinge (1) and the access door.
(5) Make sure that the diameter of the holes are between 0.202 in. (5.13 mm) and 0.206 in. (5.23 mm).
(6) Disassemble and remove:
CAUTION:
BE CAREFUL NOT TO CAUSE DAMAGE TO THE CARBON PLIES.
(a) Disassemble the parts and remove all sharp edges and burrs. C. Clean the Repair Area
V01-076 Methyl Ethyl Ketone, Technical grade
(2) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) to dry the area before the cleaning fluid dries.
(3) Make sure there is no unwanted material on the interfaces of the parts.
Subtask 71-13-14-350-060-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with the (2) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) to dry the area before the cleaning fluid dries.
(3) Make sure there is no unwanted material on the interfaces of the parts.
D. Install the Replacement Hinge
(2) Let the parts dry in the air for 10 minutes before they are assembled.
(3) Align the holes in the hinge (1) with the holes in the oil filler access door.
(4) Install the hi-lok pins:
(5) Put the AIPC 71-13-14-80-210 WASHERS (3) and AIPC 71-13-14-80-220 HI-LOK COLLARS (4) or nuts (4) on the six hi-lok pins (2).
(6) Tighten the hi-lok pins (2) and the collars or the nuts (4):
(a) Use the ring wrench to turn the collars (4) and the allen key to hold the pins (2).
(b) Tighten each of the collars or the nuts (4) equally, to pull the hinge (1) and the oil filler access door together.
(c) Tighten each of the collars (4) until the hexagon nut breaks off the collar or TORQUE each of the nuts (4) to between 33 and 27 lbf.in (0.37 and 0.31 m.daN )
.
(7) Do again steps (1) thru (6) to attach the hinge to the left fan cowl.
Subtask 71-13-14-110-060-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Apply a thin layer of the jointing compound (Material No.V04-005) on the interfaces of the AIPC 71-13-14-80-280 HINGE (1) and the oil filler access door. (2) Let the parts dry in the air for 10 minutes before they are assembled.
(3) Align the holes in the hinge (1) with the holes in the oil filler access door.
(4) Install the hi-lok pins:
CAUTION:
MAKE SURE THAT THE CORRECT DIAMETER HI-LOK PIN IS INSTALLED IN EACH HOLE.
(a) Install the six AIPC 71-13-14-80-200 HI-LOK PINS (2) into the holes in the hinge (1) and the oil filler access door. (5) Put the AIPC 71-13-14-80-210 WASHERS (3) and AIPC 71-13-14-80-220 HI-LOK COLLARS (4) or nuts (4) on the six hi-lok pins (2).
(6) Tighten the hi-lok pins (2) and the collars or the nuts (4):
(a) Use the ring wrench to turn the collars (4) and the allen key to hold the pins (2).
(b) Tighten each of the collars or the nuts (4) equally, to pull the hinge (1) and the oil filler access door together.
(c) Tighten each of the collars (4) until the hexagon nut breaks off the collar or TORQUE each of the nuts (4) to between 33 and 27 lbf.in (0.37 and 0.31 m.daN )
. (7) Do again steps (1) thru (6) to attach the hinge to the left fan cowl.
E. Clean the Repair Area
V01-076 Methyl Ethyl Ketone, Technical grade
(2) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) to dry the area before the cleaning fluid dries.
(3) Make sure that there is no unwanted material on the repair area.
Subtask 71-13-14-220-056-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with the (2) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) to dry the area before the cleaning fluid dries.
(3) Make sure that there is no unwanted material on the repair area.
F. Examine the Repaired Area
(1) Make sure that the repair is satisfactory and that it agrees with the repair instructions.
(2) Open and close the oil filler access door and make sure that the hinge (1) operates correctly.
(3) Make sure that the access door is closed correctly.
(4) Measure the distance between the edges of the access door and the left fan cowl. It must be between 0.040 in. (1.02 mm) and 0.080 in. (2.03 mm).
Subtask 71-13-14-350-061-A ** ON A/C NOT FOR ALL (1) Make sure that the repair is satisfactory and that it agrees with the repair instructions.
(2) Open and close the oil filler access door and make sure that the hinge (1) operates correctly.
(3) Make sure that the access door is closed correctly.
(4) Measure the distance between the edges of the access door and the left fan cowl. It must be between 0.040 in. (1.02 mm) and 0.080 in. (2.03 mm).
G. Write the repair scheme number VRS2741 on the oil filler access door, adjacent to the part number. Use a marking pen (Material No.V06-131) that is a different color than the background.
5. Close-upSubtask 71-13-14-410-055-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) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).