Aircraft Cleaning after Leakage from a Fish Shipment

TASK 51-78-00-615-003-A
Aircraft Cleaning after Leakage from a Fish Shipment

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
Clean the aircraft structure after a leak from a fish container.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	BRUSH - NON METALLIC
No specific	AR	CAP - BLANKING
No specific	1	HOT AIR BLOWER OPERATING 40 DEG C(104 F)
No specific	1	SCRAPER - NON METALLIC
No specific	1	VACUUM EQUIPMENT 0 TO 0.4 BAR (6 PSI)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08ABC1)	Aqueous Cleaner-Aircraft Exterior Pressure Spraying -
(Material No.12ABB1)	Corrosion Preventive Compound-Water Displacing Hard Film -
(Material No.12ABC1)	Corrosion Preventive Compound_Water Displacing Soft Film -
(Material No.12ACB1)	Corrosion Preventive Compound-Heavy Duty Hard Film -
(Material No.12ACC1)	Corrosion Preventive Compound-Heavy Duty Soft Film -
(Material No.12ADB1)	Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-38-51-000-001-A	Removal of the Battery
TASK 24-38-51-400-001-A	Installation of the Battery
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 51-74-11-300-001-A	Repair of Corroded Areas
TASK 51-75-12-300-003-A	Repair of Minor Paint Damage (Topcoat Only)
TASK 51-75-13-916-001-A	Repair to a layer of Moisture-Removing Oil
TASK 51-75-13-916-002-A	Repair to a layer of Corrosion Preventive Compound
TASK 51-76-11-300-001-A	Repair of the Sealing

3. Job Set-up
Subtask 51-78-00-941-060-A

A. Safety Precautions
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(2) Disconnect the electrical connector from the battery (Ref. AMM TASK 24-38-51-000-001).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Do not spray the cleaning solution directly on the electrical connection.

Subtask 51-78-00-010-052-A

B. Get Access
(1) Get access to the area of the leakage.
(2) Remove the components from the area you will clean to prevent contamination from water and/or cleaning agents.

NOTE: Make sure that all electrical outlets are covered to protect them from water.

4. Procedure
Subtask 51-78-00-110-052-A

A. Cleaning Procedure

CAUTION: DO NOT USE A METAL SCRAPER TO REMOVE THE UNWANTED MATERIAL. A METAL SCRAPER CAN CAUSE DAMAGE TO THE SURFACE OF THE COMPONENT.

(1) Remove the loose materials with a SCRAPER - NON METALLIC, a VACUUM EQUIPMENT 0 TO 0.4 BAR (6 PSI), or a BRUSH - NON METALLIC.
(2) Clean the area with the Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) .
(3) Flush the area with clean water.
(4) Prepare one of the cleaning solution that follow:

mix water with 5 % potassium bichromate and 0.5 % of the Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1)
or
mix water with 0.5 % of the Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) .

(5) Clean the area with the cleaning solution.
(6) Remove the solution with a clean lint-free cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(7) Flush the area with clean water.
(8) Dry the area with a HOT AIR BLOWER OPERATING 40 DEG C(104 F).
(9) If necessary, repair the corrosion damage (Ref. AMM TASK 51-74-11-300-001).
(10) If necessary, repair the paint layers (Ref. AMM TASK 51-75-12-300-003).
(11) If necessary, repair the clear nylon coating to the sealant (Ref. AMM TASK 51-76-11-300-001).
(12) If necessary, apply a layer of the Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) or Corrosion Preventive Compound-Heavy Duty Soft Film - (Material No.12ACC1) or Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) or Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) to the area (Ref. AMM TASK 51-75-13-916-001).
(13) If necessary, apply a layer of the Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) or Corrosion Preventive Compound-Heavy Duty Soft Film - (Material No.12ACC1) or Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) or Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) to the area (Ref. AMM TASK 51-75-13-916-002).

5. Close-up
Subtask 51-78-00-410-052-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install all the components that were removed for the cleaning task.
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 51-78-00-942-061-A

B. Put the aircraft back to its initial configuration.
(1) Remove the CAP-BLANKING from each electrical connector and receptacle.
(2) Connect the electrical connector to the battery (Ref. AMM TASK 24-38-51-400-001).
(3) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

[Rev.10 from 2021] 2026.04.01 01:34:58 UTC