Detailed Inspection of the Internal Attachment Area of the Hinge Fitting of the FWD Cargo-Compartment Door
TASK 52-31-11-200-003-A
Detailed Inspection of the Internal Attachment Area of the Hinge Fitting of the FWD Cargo-Compartment Door
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 52-31-11-860-060-A
Subtask 52-31-11-210-061-A
Subtask 52-31-11-410-064-A
[Rev.10 from 2021]
2026.04.01 04:12:09 UTC
Detailed Inspection of the Internal Attachment Area of the Hinge Fitting 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.
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 |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 825 | FORWARD CARGO COMPARTMENT DOOR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-75-12-300-001-A | Repair of Major Paint Damage on Light Alloy and Composite Material |
| 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 52-31-13-000-001-A | Removal of the Lining and the Insulation |
| TASK 52-31-13-400-001-A | Installation of the Lining and the Insulation |
| SRM 517300 | |
| SRM 517400 | |
| SRM 523000 | |
Subtask 52-31-11-860-060-A
A. Aircraft Maintenance Configuration
(1) Open the FWD cargo door and safety it with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
Subtask 52-31-11-865-063-A (1) Open the FWD cargo door and safety it with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-31-11-010-065-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. Remove the lining and the insulation of the cargo door (Ref. AMM TASK 52-31-13-000-001) to examine the inner side of the upper outer skin area.
4. ProcedureSubtask 52-31-11-210-061-A
A. Visual Inspection of the inner Attachment Area of the Piano Hinge Fittings
(1) Examine the upper door structure from the inner side for corrosion and cracks.
(a) If you find corrosion,
(2) Make sure that the Hi-Lok rivets are correctly tightened.
(3) Make sure that the attachment screws and nuts of the piano hinge fittings are correctly tightened and not damaged.
(4) Make sure that the paint coat in the internal attachment area is in the correct condition (Ref. AMM TASK 51-75-12-300-001).
5. Close-up(1) Examine the upper door structure from the inner side for corrosion and cracks.
(a) If you find corrosion,
- determine the extent of the corroded area SRM 523000,
- remove the damage when it is less than the limit SRM 517400.
NOTE: When the corroded area is larger than the limit, repair the affected internal attachment area.
(b) If you find a crack, repair it immediately SRM 517300. (2) Make sure that the Hi-Lok rivets are correctly tightened.
(3) Make sure that the attachment screws and nuts of the piano hinge fittings are correctly tightened and not damaged.
(4) Make sure that the paint coat in the internal attachment area is in the correct condition (Ref. AMM TASK 51-75-12-300-001).
Subtask 52-31-11-410-064-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the lining and the insulation of the cargo door (Ref. AMM TASK 52-31-13-400-001).
Subtask 52-31-11-865-064-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the lining and the insulation of the cargo door (Ref. AMM TASK 52-31-13-400-001).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 52-31-11-860-061-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. Put the aircraft back to the serviceable condition.
(1) Remove the actuator safety locks and close the FWD cargo door (Ref. AMM TASK 52-30-00-860-002).
(2) Remove the access platform(s).
(1) Remove the actuator safety locks and close the FWD cargo door (Ref. AMM TASK 52-30-00-860-002).
(2) Remove the access platform(s).
Internal Attachment Area of Piano Hinge Fittings