Subtask 12-21-11-615-062
B. Aircraft Cleaning
(1) If the external skin of the aircraft is hot, fully flush the aircraft to decrease its temperature.
(2) If the temperature is less than or equal to 0 deg.C (32.00 deg.F), use hot water between 38 deg.C (100.40 deg.F) and 43 deg.C (109.40 deg.F) with ANTI-ICING AND DE-ICING MATERIALS (Material No. 10-001), obey the manufacturers's instruction.
NOTE : If the temperature is very high, clean small areas so that the____ cleaning product does not become dry.
R R R (3) Apply the cleaning product with a spray gun from the bottom to the top of the aircraft (this prevents scratches and runs) in the order that follows: - lower forward fuselage : from the leading edge of the wings to the nose of the aircraft, - lower aft fuselage : from the trailing edge of the wings to the leading edge of the horizontal stabilizers, - upper wing surface between the fuselage and the engine pylon, - upper fuselage from the nose to the horizontal stabilizers, - lower center fuselage, engine nacelles and wing bottom skin, - tail cone, rudder, bottom and top skins of the horizontal stabilizers, - wing top skin between the engine pylon and the wing tips.
R R (4) If there are signs of asphalt, put marks on them and remove them with a sponge mop lightly soaked with CLEANING AGENTS (Material No. 11-003).
(5) If you remove dry mud or similar unwanted material, be very careful not to scratch the surface. If there are stains on the painted area, do not try to remove them.
(6) Flushing of the aircraft
(a) Let the material have an effect, then carefully flush with hot water at 65 -5 +5 deg.C (149.00 -9.00 +9.00 deg.F) under pressure. Do not use steam.
R R NOTE : When you flush the wings and the horizontal stabilizers,____ always complete the procedure on the bottom skin.
NOTE : If the temperature is less than or equal to 0 deg.C (32.00
____ deg.F), add 25% to 30% of the product when you flush.
(b)
If there is ice after the flushing operation, remove the ice (Ref. TASK 12-31-12-660-002).
(c)
If the dirt remains, carefully rub with the sponge and the cleaning material CLEANING AGENTS (Material No. 11-001).
Subtask 12-21-11-615-059
C. Cleaning of the Windows
(1)
Clean the windshield (Ref. TASK 56-10-00-110-001).
(2)
Clean the fixed windows (Ref. TASK 56-10-00-110-002).
(3)
Clean the sliding windows (Ref. TASK 56-10-00-110-003).
(4) Clean the windows (Ref. TASK 56-21-13-100-002). Subtask 12-21-11-010-052
D. Get Access
(1) Open and safety the main doors of:
-the nose landing gear (Ref. TASK 32-22-00-010-001),
-the main landing gear (Ref. TASK 32-12-00-010-001). Subtask 12-21-11-210-056
E. Visual Inspection
(1) Make sure that the openings of the landing gear wells are closed or blocked and make sure that water or detergent does not go on to the steering wiring bundles or the bearing assemblies.
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Subtask 12-21-11-615-060
F. Cleaning of the Landing Gear Components
CAUTION : DO NOT POINT HIGH-PRESSURE JETS:
_______
-
AT EQUIPMENT SUCH AS GEAR BOX SEALS, STEADY BEARINGS, ROTARY
ACTUATORS AND UNIVERSAL JOINTS,
-
AT ELECTRICAL COMPONENTS SUCH AS HARNESSES, PROXIMITY SENSORS
AND CONNECTORS.
THE IMPACT PRESSURE OF THE JETS MUST NOT BE MORE THAN 5 PSI
(0.35 BAR). FOR FAIRINGS, THE IMPACT PRESSURE OF THE JETS MUST
NOT BE MORE THAN 1.5 PSI (0.1 BAR).
HIGH PRESSURE JETS CAN PUSH LIQUIDS INTO BEARINGS, JOINTS,
BRAKES, ELECTRICAL CONNECTORS AND OTHER SEALED COMPONENTS.
LIQUIDS THAT GET INTO THESE AREAS CAN CAUSE CORROSION, FREEZE
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