DOC AIRBUS | AMM A320FInstallation of the Door Handle Assembly and the Related Linkage Mechanism
TASK 52-31-21-400-010-A
Installation of the Door Handle Assembly and the Related Linkage Mechanism
Self explanatory
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 52-31-21-860-064-A
Subtask 52-31-21-910-061-A ** ON A/C NOT FOR ALL
Subtask 52-31-21-410-068-A
[Rev.10 from 2021]
2026.04.02 06:27:53 UTC
Installation of the Door Handle Assembly and the Related Linkage Mechanism
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
IMMEDIATELY AFTER YOU OPEN THE CARGO COMPARTMENT DOOR, RECORD ON THE WORK CARD ON THE DOOR, THE DATE AND TIME WHEN YOU OPENED IT. IF THE CARGO COMPARTMENT DOOR STAYS OPEN FOR 12 HOURS OR MORE, YOU MUST BLEED THE HYDRAULIC SYSTEM RELATED TO IT. IF YOU DO NOT OBEY THESE PRECAUTIONS, THE DOOR CAN CLOSE SUDDENLY WHEN YOU SET THE DOOR TO "CLOSE". THIS CAN CAUSE DAMAGE TO THE DOOR AND TO THE AIRCRAFT STRUCTURE.
ZONE: 825
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| (Material No.03JBA1) | Silicone base Grease-General Purpose - - |
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| (Material No.06AEA1) | Polysulfide Sealant-Low Adhesion Brushable - |
| (Material No.12ABB1) | Corrosion Preventive Compound-Water Displacing Hard Film - |
| (Material No.12ABC1) | Corrosion Preventive Compound_Water Displacing Soft Film - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 825 | FORWARD CARGO COMPARTMENT DOOR |
| 825AR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 22 | COTTER PINS | AIPC 52-31-21-30-060 |
| 41 | COTTER PIN | AIPC 52-31-21-30-150 |
| 53 | COTTER PIN | AIPC 52-31-21-30-150 |
| 61 | COTTER PIN | AIPC 52-31-21-30-150 |
| 46 | COTTER PIN | AIPC 52-31-21-30-380 |
| 41 | COTTER PIN | AIPC 52-31-82-40-150 |
| 53 | COTTER PIN | AIPC 52-31-82-40-150 |
| 61 | COTTER PIN | AIPC 52-31-82-40-150 |
| 46 | COTTER PIN | AIPC 52-31-82-40-330 |
| 22 | COTTER PINS | AIPC 52-31-82-40-500 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-22-52-640-002-A | Lubrication of Cargo Door |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-31-00-710-001-A | Operational Test of the FWD Cargo-Compartment Door |
| TASK 52-31-00-720-001-A | Functional Check of Forward Cargo Compartment Door, Comprising Functional Checks of Locking Mechanism, Interlock Mechanism, Drift Pin Mechanism and Safety Mechanism |
| TASK 52-31-11-820-002-A | Adjustment of the Door Mechanism |
| TASK 52-71-00-820-004-A | Adjustment of the Proximity Switches of the Locking Handle of the Cargo Compartment Doors |
Subtask 52-31-21-860-064-A
A. Aircraft Maintenance Configuration
Access Cover and Protection Plugs ** ON A/C NOT FOR ALL
Access Cover and Protection Plugs ** ON A/C NOT FOR ALL
(1) Make sure that the FWD cargo-compartment door (referred to as cargo door) is opened and safetied with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Make sure that the access panel 825AR is removed from the cargo door.
(3) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
(4) Make sure that the access panel (1) is removed from the inner skin of the cargo door.
(5) Make sure that the protective plug (5) is removed from the edge member at FR28.
Subtask 52-31-21-865-075-A Access Cover and Protection Plugs ** ON A/C NOT FOR ALL Access Cover and Protection Plugs ** ON A/C NOT FOR ALL (2) Make sure that the access panel 825AR is removed from the cargo door.
(3) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
(4) Make sure that the access panel (1) is removed from the inner skin of the cargo door.
(5) Make sure that the protective plug (5) is removed from the edge member at FR28.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 122VU | DOORS/CARGO | 1MJ | T12 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
Subtask 52-31-21-910-061-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the:
(6) Apply a layer of Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to the mating surface of the mounting bracket (68).
Subtask 52-31-21-420-071-A ** ON A/C NOT FOR ALL (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a layer of Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the:
- mating surface of the serrated shaft (31) and its splined ends
- shaft of the spring bolt (19)
- shaft of the bolts (39), (44), (49), (56) and (58)
- pins (24).
(6) Apply a layer of Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to the mating surface of the mounting bracket (68).
B. Installation of the Linkage Mechanism
(1) Install the serrated shaft (31) into the door structure (38) as follows:
(a) Move the serrated shaft (31) through the lateral cutout of the cargo door into the sliding bearings of the door structure (38).
(b) During this movement, assemble the Maltese-cross latch (32), the roller lever (33) and the Maltese-cross lock (34) in the correct sequence on the serrated shaft (31).
(c) Make sure that the attachment holes of the Maltese-cross lock (34) and the serrated shaft (31) are aligned.
(d) Attach the Maltese-cross lock (34) with the bolt (35), the washer (36) and the nut (37) on the serrated shaft (31).
(2) Install the gas spring (27) between the mounting bracket (68) and the shaft lever (25) as follows:
(a) Put the gas spring (27) together with the washers (28) in position and attach it with the pins (24).
(b) Safety the pins (24) with the washers (23) and the new AIPC 52-31-21-30-060 COTTER PINS (22).
(3) Assemble the shaft lever (25) together with the gas spring (27) and the mounting bracket (68) on the serrared shaft (31) as follows:
(a) Move the shaft lever (25) on the splined end of the serrated shaft (31) until their attachment holes are aligned.
(b) Attach the shaft lever (25) with the bolt (64), the washer (63) and the nut (62) on the serrated shaft (31).
(4) Put the mounting bracket (68) to the door structure (67) and attach it with the bolts (65), the washers (66) and the nuts (69),
(a) Assemble the handle spring (20) with the spring bolt (19).
(b) Put the spring bolt (19) together with the handle spring (20) in position to the door beam 4.
(c) Install the mounting nut (18) on the spring bolt (19) to set the handle spring (20) under pre-tension.
(6) Attach the spring bolt (19) on the roller lever (33) as follows:
(a) Put the fork-end of the spring bolt (19) to the roller lever (33) so that their bores align.
(b) Install the bolt (39), the washer (51) and the nut (50) and tighten it. Remove the mounting nut (18) from the spring bolt (19).
(7) Install the control rod (57) on the locking shaft lever (52) as follows:
(a) Put the lower fork-end of control rod (57) to the locking shaft lever (52) so that their bores align.
(b) Install the bolt (56), the washers (55) and the nut (54).
(c) Tighten the nut (54) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (53).
(8) Install the connection rod (45) on the link lever (40) as follows:
(a) Put the lower fork-end of connection rod (45) in position and install the bolt (44), the washers (43) and the nut (42).
(b) Tighten the nut (42) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (41).
Subtask 52-31-21-910-061-B ** ON A/C NOT FOR ALL (1) Install the serrated shaft (31) into the door structure (38) as follows:
(a) Move the serrated shaft (31) through the lateral cutout of the cargo door into the sliding bearings of the door structure (38).
(b) During this movement, assemble the Maltese-cross latch (32), the roller lever (33) and the Maltese-cross lock (34) in the correct sequence on the serrated shaft (31).
(c) Make sure that the attachment holes of the Maltese-cross lock (34) and the serrated shaft (31) are aligned.
(d) Attach the Maltese-cross lock (34) with the bolt (35), the washer (36) and the nut (37) on the serrated shaft (31).
(2) Install the gas spring (27) between the mounting bracket (68) and the shaft lever (25) as follows:
(a) Put the gas spring (27) together with the washers (28) in position and attach it with the pins (24).
(b) Safety the pins (24) with the washers (23) and the new AIPC 52-31-21-30-060 COTTER PINS (22).
(3) Assemble the shaft lever (25) together with the gas spring (27) and the mounting bracket (68) on the serrared shaft (31) as follows:
(a) Move the shaft lever (25) on the splined end of the serrated shaft (31) until their attachment holes are aligned.
(b) Attach the shaft lever (25) with the bolt (64), the washer (63) and the nut (62) on the serrated shaft (31).
(4) Put the mounting bracket (68) to the door structure (67) and attach it with the bolts (65), the washers (66) and the nuts (69),
NOTE: You must install the mounting bracket (68) with force to compress the gas spring (27).
(5) If removed, install the handle spring (20) as follows: (a) Assemble the handle spring (20) with the spring bolt (19).
(b) Put the spring bolt (19) together with the handle spring (20) in position to the door beam 4.
(c) Install the mounting nut (18) on the spring bolt (19) to set the handle spring (20) under pre-tension.
(6) Attach the spring bolt (19) on the roller lever (33) as follows:
(a) Put the fork-end of the spring bolt (19) to the roller lever (33) so that their bores align.
(b) Install the bolt (39), the washer (51) and the nut (50) and tighten it. Remove the mounting nut (18) from the spring bolt (19).
(7) Install the control rod (57) on the locking shaft lever (52) as follows:
(a) Put the lower fork-end of control rod (57) to the locking shaft lever (52) so that their bores align.
(b) Install the bolt (56), the washers (55) and the nut (54).
(c) Tighten the nut (54) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (53).
(8) Install the connection rod (45) on the link lever (40) as follows:
(a) Put the lower fork-end of connection rod (45) in position and install the bolt (44), the washers (43) and the nut (42).
(b) Tighten the nut (42) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (41).
C. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a layer of the Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the:
(6) Apply a layer of the Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to the mating surfaces of the mounting bracket (67).
Subtask 52-31-21-420-071-C ** ON A/C NOT FOR ALL (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a layer of the Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the:
- mating surfaces of the serrated shaft (31) and its splined ends
- shaft of the spring bolt (19)
- shafts of the bolts (39), (44), (49), (56) and (58)
- pins (24).
(6) Apply a layer of the Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to the mating surfaces of the mounting bracket (67).
D. Installation of the Linkage Mechanism
(1) Install the serrated shaft (31) in the door structure as follows:
(a) Move the serrated shaft (31) through the lateral cutout of the cargo door into the sliding bearings of the door structure.
(b) During this movement, assemble the Maltese-cross latch (32), the roller lever (33) and the Maltese-cross lock (34) in the correct sequence on the serrated shaft (31).
(c) Make sure that the attachment holes of the Maltese-cross lock (34) and the serrated shaft (31) align.
(d) Attach the Maltese-cross lock (34) with the bolt (35), the washer (36) and the nut (37) on the serrated shaft (31).
(2) Install the gas spring (27) between the mounting bracket (67) and the shaft lever (25) as follows:
(a) Put the gas spring (27) with the washers (28) in position and attach it with the pins (24).
(b) Safety the pins (24) with the washers (23) and the new AIPC 52-31-21-30-060 COTTER PINS (22) or the new AIPC 52-31-82-40-500 COTTER PINS (22).
(3) Assemble the shaft lever (25) with the gas spring (27) and the mounting bracket (67) on the serrared shaft (31) as follows:
(a) Move the shaft lever (25) on the splined end of the serrated shaft (31) until their attachment holes align.
(b) Attach the shaft lever (25) with the bolt (64), the washer (63) and the nut (62) on the serrated shaft (31).
(4) Put the mounting bracket (67) in position at the door structure and attach it with the bolts (65), the washers (66) and the nuts (68).
(a) Install the handle spring (20) on the spring bolt (19).
(b) Put the spring bolt (19) with the handle spring (20) in position in the door beam 4.
(c) Install the bush (71), and the mounting nut (18) on the spring bolt (19) to set the handle spring (20) under pre-tension.
(6) Attach the spring bolt (19) to the roller lever (33) as follows:
(a) Put the fork-end of the spring bolt (19) in its correct installation position at the roller lever (33).
(b) Install the bolt (39), the washer (51) and the nut (50). Remove the mounting nut (18) and the bush (71) from the spring bolt (19).
(7) Install the control rod (57) on the locking shaft lever (52) as follows:
(a) Put the lower fork-end of the control rod (57) in its correct installation position on to the locking shaft lever (52).
(b) Install the bolt (56), the washers (55) and the nut (54).
(c) Tighten the nut (54) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (53) or AIPC 52-31-82-40-150 COTTER PIN (53).
(8) Install the connection rod (45) on the link lever (40) as follows:
(a) Put the lower fork-end of connection rod (45) in position and install the bolt (44), the washers (43) and the nut (42).
(b) Tighten the nut (42) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (41) or AIPC 52-31-82-40-150 COTTER PIN (41).
Subtask 52-31-21-420-072-A (1) Install the serrated shaft (31) in the door structure as follows:
(a) Move the serrated shaft (31) through the lateral cutout of the cargo door into the sliding bearings of the door structure.
(b) During this movement, assemble the Maltese-cross latch (32), the roller lever (33) and the Maltese-cross lock (34) in the correct sequence on the serrated shaft (31).
(c) Make sure that the attachment holes of the Maltese-cross lock (34) and the serrated shaft (31) align.
(d) Attach the Maltese-cross lock (34) with the bolt (35), the washer (36) and the nut (37) on the serrated shaft (31).
(2) Install the gas spring (27) between the mounting bracket (67) and the shaft lever (25) as follows:
(a) Put the gas spring (27) with the washers (28) in position and attach it with the pins (24).
(b) Safety the pins (24) with the washers (23) and the new AIPC 52-31-21-30-060 COTTER PINS (22) or the new AIPC 52-31-82-40-500 COTTER PINS (22).
(3) Assemble the shaft lever (25) with the gas spring (27) and the mounting bracket (67) on the serrared shaft (31) as follows:
(a) Move the shaft lever (25) on the splined end of the serrated shaft (31) until their attachment holes align.
(b) Attach the shaft lever (25) with the bolt (64), the washer (63) and the nut (62) on the serrated shaft (31).
(4) Put the mounting bracket (67) in position at the door structure and attach it with the bolts (65), the washers (66) and the nuts (68).
NOTE: You must install the mounting bracket (67) with force to compress the gas spring (27).
(5) If removed, install the handle spring (20) as follows: (a) Install the handle spring (20) on the spring bolt (19).
(b) Put the spring bolt (19) with the handle spring (20) in position in the door beam 4.
(c) Install the bush (71), and the mounting nut (18) on the spring bolt (19) to set the handle spring (20) under pre-tension.
(6) Attach the spring bolt (19) to the roller lever (33) as follows:
(a) Put the fork-end of the spring bolt (19) in its correct installation position at the roller lever (33).
(b) Install the bolt (39), the washer (51) and the nut (50). Remove the mounting nut (18) and the bush (71) from the spring bolt (19).
(7) Install the control rod (57) on the locking shaft lever (52) as follows:
(a) Put the lower fork-end of the control rod (57) in its correct installation position on to the locking shaft lever (52).
(b) Install the bolt (56), the washers (55) and the nut (54).
(c) Tighten the nut (54) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (53) or AIPC 52-31-82-40-150 COTTER PIN (53).
(8) Install the connection rod (45) on the link lever (40) as follows:
(a) Put the lower fork-end of connection rod (45) in position and install the bolt (44), the washers (43) and the nut (42).
(b) Tighten the nut (42) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (41) or AIPC 52-31-82-40-150 COTTER PIN (41).
E. Installation of the Door Handle
(1) Install the door handle (14) on the door structure (17) as follows:
(a) Put the door handle (14) and the adjustment washers (15) and (16) in position on the door structure (17).
(b) Move the door handle shaft (26) into the door structure (17) so that it engages with the door handle (14) and the adjustment washers (15) and (16).
(2) Measure the lateral clearances "A" between the door handle (14) and the door structure.
(4) Safety the correct installed door handle shaft (14) as follows:
(a) Put the lock device (30) into the slot of door handle shaft (14).
(b) Attach the lock device (30) with the screws (29) on the door structure (17).
(5) Install the control rod (57) on the shaft lever (25) as follows:
(a) Put the upper fork-end of the control rod (57) in position and install the bolt (58), the washers (59) and the nut (60).
(b) Tighten the nut (60) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (61) or AIPC 52-31-82-40-150 COTTER PIN (61).
(6) Install the connection rod (45) on the Maltese-cross latch (32) as follows:
(a) Put the upper fork-end of the control rod (45) in position and install the bolt (49), the washers (48) and the nut (47).
(b) Tighten the nut (47) and safety it with the new AIPC 52-31-21-30-380 COTTER PIN (46) or AIPC 52-31-82-40-330 COTTER PIN (46).
Subtask 52-31-21-820-059-A (1) Install the door handle (14) on the door structure (17) as follows:
(a) Put the door handle (14) and the adjustment washers (15) and (16) in position on the door structure (17).
(b) Move the door handle shaft (26) into the door structure (17) so that it engages with the door handle (14) and the adjustment washers (15) and (16).
(2) Measure the lateral clearances "A" between the door handle (14) and the door structure.
NOTE: The lateral clearances "A" should have the same size and must be between 1.0 mm (0.039 in.) and 3.0 mm (0.118 in.).
(3) If the lateral clearances "A" are out of tolerance, change the position of the adjustment washers (15) and (16). (4) Safety the correct installed door handle shaft (14) as follows:
(a) Put the lock device (30) into the slot of door handle shaft (14).
(b) Attach the lock device (30) with the screws (29) on the door structure (17).
(5) Install the control rod (57) on the shaft lever (25) as follows:
(a) Put the upper fork-end of the control rod (57) in position and install the bolt (58), the washers (59) and the nut (60).
(b) Tighten the nut (60) and safety it with the new AIPC 52-31-21-30-150 COTTER PIN (61) or AIPC 52-31-82-40-150 COTTER PIN (61).
(6) Install the connection rod (45) on the Maltese-cross latch (32) as follows:
(a) Put the upper fork-end of the control rod (45) in position and install the bolt (49), the washers (48) and the nut (47).
(b) Tighten the nut (47) and safety it with the new AIPC 52-31-21-30-380 COTTER PIN (46) or AIPC 52-31-82-40-330 COTTER PIN (46).
F. Adjustment of the Door Handle and the related Linkage Mechanism
(1) Adjust the door handle to make sure that its skin offset is correct (Ref. AMM TASK 52-31-11-820-002).
(2) Adjust the linkage mechanism to make sure that the latching and locking mechanism operate satisfactory (Ref. AMM TASK 52-31-11-820-002).
(3) Make sure that the clearance between the target and the sensor of the proximity switch 28WV is correctly adjusted (Ref. AMM TASK 52-71-00-820-004).
Subtask 52-31-21-865-076-A (1) Adjust the door handle to make sure that its skin offset is correct (Ref. AMM TASK 52-31-11-820-002).
(2) Adjust the linkage mechanism to make sure that the latching and locking mechanism operate satisfactory (Ref. AMM TASK 52-31-11-820-002).
(3) Make sure that the clearance between the target and the sensor of the proximity switch 28WV is correctly adjusted (Ref. AMM TASK 52-71-00-820-004).
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 52-31-21-720-058-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 122VU | DOORS/CARGO | 1MJ | T12 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
H. Test Procedure
(1) Make sure that the door handle mechanism is correctly lubricated (Ref. AMM TASK 12-22-52-640-002).
(2) Do a functional test to make sure that the force necessary to operate the door handle is correct (Ref. AMM TASK 52-31-00-720-001).
(3) Make sure that the proximity switch 28WV operates satisfactory (Ref. AMM TASK 52-31-00-710-001).
5. Close-up(1) Make sure that the door handle mechanism is correctly lubricated (Ref. AMM TASK 12-22-52-640-002).
(2) Do a functional test to make sure that the force necessary to operate the door handle is correct (Ref. AMM TASK 52-31-00-720-001).
(3) Make sure that the proximity switch 28WV operates satisfactory (Ref. AMM TASK 52-31-00-710-001).
Subtask 52-31-21-410-068-A
A. Close Access
Access Cover and Protection Plugs ** ON A/C NOT FOR ALL
Access Cover and Protection Plugs ** ON A/C NOT FOR ALL
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) to all the components of the door handle and the related linkage mechanism and to the adjacent cargo door structure.
(3) Put the access panel (1) in position to the inner skin and attach it with the screws (3) and (4) and the washers (2).
(4) Install the protection plug (5) in the edge member at FR28 and apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(5) Install the access panel 825AR on the cargo door.
(6) Remove the actuator safety locks and close the cargo door (Ref. AMM TASK 52-30-00-860-002).
(7) Remove the access platform(s).
Access Cover and Protection Plugs ** ON A/C NOT FOR ALL Access Cover and Protection Plugs ** ON A/C NOT FOR ALL (2) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) to all the components of the door handle and the related linkage mechanism and to the adjacent cargo door structure.
(3) Put the access panel (1) in position to the inner skin and attach it with the screws (3) and (4) and the washers (2).
(4) Install the protection plug (5) in the edge member at FR28 and apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(5) Install the access panel 825AR on the cargo door.
(6) Remove the actuator safety locks and close the cargo door (Ref. AMM TASK 52-30-00-860-002).
(7) Remove the access platform(s).