C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
51-74-11-300-001 51-75-12-300-003 51-75-13-916-001 51-75-13-916-002 51-76-11-300-001 Repair of Corroded AreasRepair of Minor Paint Damage (Topcoat Only)Repair to a layer of Moisture-Removing OilRepair to a layer of Corrosion Preventive CompoundRepair of the Sealing
3. Job Set-up__________
Subtask 51-78-00-865-054
A. Open, safety and tag the circuit breakers of all electrical components and systems in the work area.
Subtask 51-78-00-010-052
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. Cleaning Procedure
R R CAUTION : DO NOT USE A METAL SCRAPER TO REMOVE THE UNWANTED MATERIAL. A_______ METAL SCRAPER CAN CAUSE DAMAGE TO THE SURFACE OF THE COMPONENT.
R R (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.
R (2) Clean the area with the CLEANING AGENTS (Material No. 11-001).
(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 CLEANING AGENTS (Material No. 11-001) or - mix water with 0.5 % of the CLEANING AGENTS (Material No. 11-001).
(5) Clean the area with the cleaning solution.
R R (6) Remove the solution with a clean lint-free cloth MISCELLANEOUS (Material No. 19-003).
(7) Flush the area with clean water.
R (8) Dry the area with a HOT AIR BLOWER OPERATING 40 DEG C (100 DEG F).
R (9) If necessary, repair the corrosion damage (Ref. TASK 51-74-11-300-001).
(10) If necessary, repair the paint layers (Ref. TASK 51-75-12-300-003).
R R (11) If necessary, repair the clear nylon coating to the sealant (Ref. TASK 51-76-11-300-001).
R R (12) If necessary, apply a layer of the SPECIAL MATERIALS (Material No. 05-027) to the area (Ref. TASK 51-75-13-916-001).
R R (13) If necessary, apply a layer of the SPECIAL MATERIALS (Material No. 05-005) to the area (Ref. TASK 51-75-13-916-002).
5. Close-up________
Subtask 51-78-00-410-052
A. Close Access
(1) Install all the components that were removed for the cleaning task.
(2) Remove the safety clip(s) and tag(s) and close the circuit breaker(s) of all the electrical components and systems in the work area.
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
TASK 51-78-00-615-004
Aircraft Cleaning after an Acid or Alkali Leakage
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL MATERIALS
_______ ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
WARNING : YOU MUST ALWAYS WEAR RUBBER GLOVES WHEN YOU DO THIS PROCEDURE.
_______
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