Manual Unloading Procedure for 60.4-Inch x 61.5-Inch Unit Load Devices (ULD) in the Lower Deck Forward Cargo-Compartment

TASK 25-52-00-913-007-A
Manual Unloading Procedure for 60.4-Inch x 61.5-Inch Unit Load Devices (ULD) in the Lower Deck Forward Cargo-Compartment

WARNING: MAKE SURE THAT YOU DO NOT CAUSE ACCIDENTAL MOVEMENT OF A ULD DURING THE UNLOADING PROCEDURE:

USE SUFFICIENT LOADING PERSONNEL TO DO THE PROCEDURE SAFELY.
DO NOT UNLOCK A ULD UNTIL IMMEDIATELY BEFORE YOU UNLOAD IT.

ACCIDENTAL MOVEMENT OF A ULD CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.

1. Reason for the Job
If a power failure or malfunction occurs, you can do the unloading manually.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	LOADER - PLATFORM

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-52-00-913-001-A	Operation of the Manually Operated Components of the Cargo Loading System (CLS) of the Lower Deck Forward and Aft Cargo-Compartments
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
Forward Cargo Compartment for 60.4-Inch x 61.5-Inch ULDs

3. Job Set-up
Subtask 25-52-00-860-099-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

CAUTION: MAKE SURE THAT THE LOADER PLATFORM AND THE AIRCRAFT DOOR SILL ARE CORRECTLY ALIGNED BEFORE YOU LOAD/UNLOAD A ULD. THIS PREVENTS DAMAGE TO THE AIRCRAFT DOOR SILL AND/OR THE ULD.

(2) Put a LOADER - PLATFORM in a position at the entrance to the forward cargo compartment.
(3) Open the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(4) Set CARGO COMPARTMENT LIGHT switch on the service panel to the ON position.
(5) Lower the manually operated pawls of the YZ-latches of the door-sill latches.
(6) Lower the door-sill latches.

4. Procedure
Subtask 25-52-00-913-068-A ** ON A/C NOT FOR ALL

A. Prepare to move 60.4-inch x 61.5-inch ULDs out of the lower-deck forward cargo-compartment.
(1) Unlock the manually operated components of the CLS for the unloading of the ULDs (Ref. AMM TASK 25-52-00-913-001).

Subtask 25-52-00-913-069-A ** ON A/C NOT FOR ALL

B. Manual Unloading Procedure for the ULDs from the Load Positions 11 thru 12 and 21 thru 23
(1) Unlock each ULD and move it forward until the ULD touches the endstops.
(2) Set the SILL LOCK handle to the UNLOCK position to lower the Y-latches of the door-sill latches. Hold it in this position.
(3) Move the ULD out of the aircraft manually.
(4) Release the SILL LOCK handle.
(5) Move the ULD out of the cargo compartment to its correct position on the loader platform.

5. Close-up
Subtask 25-52-00-860-100-A ** ON A/C NOT FOR ALL

A. Put the Aircraft back to its Initial Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Set the door sill latch to the up and locked position.
(3) Make sure that the pawls of the YZ-latches of the door-sill latches are lifted.

Subtask 25-52-00-410-083-A ** ON A/C NOT FOR ALL

B. Close Access
(1) On the service panel, set the CARGO COMPARTMENT LIGHT switch to the OFF position.
(2) Remove the loader platform.
(3) Close the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).

Subtask 25-52-00-862-075-A ** ON A/C NOT FOR ALL

C. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:37:42 UTC