Removal of the FWD Cargo-Compartment Door
TASK 52-31-11-000-001-A
Removal of the FWD Cargo-Compartment Door
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 52-31-11-010-050-A
Subtask 52-31-11-020-050-C
Subtask 52-31-11-942-066-A
[Rev.10 from 2021]
2026.04.01 01:40:52 UTC
Removal of the FWD Cargo-Compartment Door
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.
CAUTION:
THIS PART IS A REMOVABLE STRUCTURAL COMPONENT (RSC), WHICH CAN BE MOVED BETWEEN AIRCRAFT. THUS IT CAN HAVE DIFFERENT OPERATION CONDITIONS AND A DIFFERENT LIFE RECORD (FLIGHT HOURS/FLIGHT CYCLES/CALENDAR) FROM THE AIRCRAFT IT IS INSTALLED ON OR REMOVED FROM. THE OPERATOR IS RESPONSIBLE FOR THE SPECIFIC TRACKING AND CONTINUED AIRWORTHINESS OF REMOVABLE STRUCTURAL COMPONENTS. INCORRECT MAINTENANCE OF THESE COMPONENTS CAN CAUSE A RISK FOR THE FLIGHT SAFETY.
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 |
| No specific | 1 | CRANE 200KG (440 LB) |
| No specific | AR | FILM - MASKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| 98A52008509000 | 1 | SLING-UNIVERSAL,DOORS |
| 98D52307523001 | 1 | EXTRACTOR-HINGE PINS,CARGO DOOR |
| 98D52307524000 | 2 | STRUT-SUPPORT,CARGO DOORS |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 11-00-00-000-004-A | Removal of the Hoisting-Point Cover Patches |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 52-30-00-080-001-A | Removal of the Safety Support Equipment |
| TASK 52-30-00-480-001-A | Installation of the Safety Support Equipment |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-31-24-000-001-A | Removal of the Wiring Harness |
Subtask 52-31-11-010-050-A
A. Get Access
(1) Open the FWD cargo-compartment door (referred to as the cargo door) (Ref. AMM TASK 52-30-00-860-001).
(2) Install the 98D52307524000 STRUT-SUPPORT,CARGO DOORS to safety the opened cargo door (Ref. AMM TASK 52-30-00-480-001).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE stays in position below the opened cargo door.
Subtask 52-31-11-865-050-A (1) Open the FWD cargo-compartment door (referred to as the cargo door) (Ref. AMM TASK 52-30-00-860-001).
(2) Install the 98D52307524000 STRUT-SUPPORT,CARGO DOORS to safety the opened cargo door (Ref. AMM TASK 52-30-00-480-001).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE stays in position below the opened cargo door.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-31-11-860-055-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 |
C. Aircraft Maintenance Configuration
(1) Put a CRANE 200KG (440 LB) in position at the cargo door.
(2) Attach the hoisting sling to the cargo door as follows:
(b) Attach the ring of the turnbuckles (7) to the hooks of the three-leg sling (8).
(c) Remove the self-adhesive disks (1) from the hoisting points (3) and discard the self-adhesive disks (1) (Ref. AMM TASK 11-00-00-000-004).
(d) Remove the plastic cap (2) from the hoisting point (3).
(e) Install the ring bolts (5) with the rubber washers (4) in the hoisting points (3). Tighten the ring bolts (5) only with your hand.
(f) Attach the ropes (6) to the ring of the ring bolts (5).
(g) Attach the ends of the ropes (6) to the hooks of the turnbuckles (7).
(h) If necessary, adjust the length of the leg with the turnbuckle (7) until the three legs have the same length.
(i) Carefully operate the crane until the leg of the hoisting sling is under load.
(3) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
4. Procedure(1) Put a CRANE 200KG (440 LB) in position at the cargo door.
(2) Attach the hoisting sling to the cargo door as follows:
NOTE: The hoisting sling of the cargo doors (PN 98A52008509040) is part of the 98A52008509000 SLING-UNIVERSAL,DOORS. The hoisting sling includes the three-leg sling (PN 98A52008509104), the turnbuckle (PN 98A52008509100), the rope (PN 98A52008509504) and the ring bolt (PN 98A52008509102).
(a) Attach the ring of the three-leg sling (8) to the crane. (b) Attach the ring of the turnbuckles (7) to the hooks of the three-leg sling (8).
(c) Remove the self-adhesive disks (1) from the hoisting points (3) and discard the self-adhesive disks (1) (Ref. AMM TASK 11-00-00-000-004).
(d) Remove the plastic cap (2) from the hoisting point (3).
(e) Install the ring bolts (5) with the rubber washers (4) in the hoisting points (3). Tighten the ring bolts (5) only with your hand.
(f) Attach the ropes (6) to the ring of the ring bolts (5).
(g) Attach the ends of the ropes (6) to the hooks of the turnbuckles (7).
(h) If necessary, adjust the length of the leg with the turnbuckle (7) until the three legs have the same length.
(i) Carefully operate the crane until the leg of the hoisting sling is under load.
(3) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
Subtask 52-31-11-020-050-C
A. Removal of the Cargo door
(1) Disconnect the electrical connector (20) from the receptacle (19) and remove the wire harness 4611VB (21) from the ceiling lining of the actuator area (Ref. AMM TASK 52-31-24-000-001).
(2) Disconnect the door actuators from the cargo door as follows:
(a) Remove the nut (9), the washer (11), the bolt (12) and the bonding jumper (10) from the actuator attachment fitting (13).
(b) Remove the cotter pin (17), the nut (16) and the washer (15) from the bolt (14).
(c) Hold the piston eye end (18) so that it cannot fall when you remove the bolt (14).
(d) Remove the bolt (14) with the washer (15) and disconnect the piston eye end (18) from the actuator attachment fitting (13).
(e) If necessary, remove the bushes (22) and (23) from the actuator attachment fitting (13).
(3) Remove the screws (31) and the end fittings (30) with the shims (29) from the piano hinge area.
(4) Apply FILM - MASKING to the adjacent fuselage area to prevent damage during the removal of the hinge pins (24).
(5) Make sure that the sling (5) is tight and that there is no load on the hinge pins (24).
(6) Remove the 98D52307524000 STRUT-SUPPORT,CARGO DOORS from the cargo door and the fuselage frames (Ref. AMM TASK 52-30-00-080-001).
(7) Remove the hinge pins (24) and the washers (25 thru 28) from the piano hinge area with 98D52307523001 EXTRACTOR-HINGE PINS,CARGO DOOR.
(8) Carefully remove the cargo door from the fuselage and put it in an applicable fixture.
5. Close-up(1) Disconnect the electrical connector (20) from the receptacle (19) and remove the wire harness 4611VB (21) from the ceiling lining of the actuator area (Ref. AMM TASK 52-31-24-000-001).
(2) Disconnect the door actuators from the cargo door as follows:
(a) Remove the nut (9), the washer (11), the bolt (12) and the bonding jumper (10) from the actuator attachment fitting (13).
(b) Remove the cotter pin (17), the nut (16) and the washer (15) from the bolt (14).
(c) Hold the piston eye end (18) so that it cannot fall when you remove the bolt (14).
(d) Remove the bolt (14) with the washer (15) and disconnect the piston eye end (18) from the actuator attachment fitting (13).
(e) If necessary, remove the bushes (22) and (23) from the actuator attachment fitting (13).
(3) Remove the screws (31) and the end fittings (30) with the shims (29) from the piano hinge area.
(4) Apply FILM - MASKING to the adjacent fuselage area to prevent damage during the removal of the hinge pins (24).
(5) Make sure that the sling (5) is tight and that there is no load on the hinge pins (24).
(6) Remove the 98D52307524000 STRUT-SUPPORT,CARGO DOORS from the cargo door and the fuselage frames (Ref. AMM TASK 52-30-00-080-001).
(7) Remove the hinge pins (24) and the washers (25 thru 28) from the piano hinge area with 98D52307523001 EXTRACTOR-HINGE PINS,CARGO DOOR.
(8) Carefully remove the cargo door from the fuselage and put it in an applicable fixture.
Subtask 52-31-11-942-066-A
A. Preparation of the Cargo Door for the Stowage
(1) Remove the end of the ropes (6) from the hooks of the turnbuckles (7).
(2) Remove the ropes (6) from the rings of the ring bolts (5).
(3) Remove the rings of the turnbuckles (7) from the hooks of the three-leg sling (8).
(4) Remove the ring bolts (5) with the rubber washers (4) from the hoisting points (3).
(5) Remove the ring of the three-leg sling (8) from the crane.
(6) Install the plastic caps (4) into the upper hoisting points (3).
(1) Remove the end of the ropes (6) from the hooks of the turnbuckles (7).
(2) Remove the ropes (6) from the rings of the ring bolts (5).
(3) Remove the rings of the turnbuckles (7) from the hooks of the three-leg sling (8).
(4) Remove the ring bolts (5) with the rubber washers (4) from the hoisting points (3).
(5) Remove the ring of the three-leg sling (8) from the crane.
(6) Install the plastic caps (4) into the upper hoisting points (3).
Installation of the Cargo Door Sling