(a)  
Remove Light Material (dust and dirt) from Smooth Surfaces

(b)  
Remove Moderately Heavy Material (oil and mud) from Smooth Surfaces

(c)  
Remove Heavy Material (grease and exhaust particles) from Smooth Surfaces

(d)  
Remove Material Around Sensitive Components

(e)  
Remove Unwanted Hydraulic Fluid

(f)  
Clean With Foam

(2)  
Use the Remove Material Around Sensitive Components procedure to clean the areas that contain mechanical, electrical, or hydraulic components. These areas include the wheel wells, flight control surfaces, and landing gear.

(3)  
When moderately heavy or heavy material removal is necessary, remove the heavier material first. Then clean the airplane with the procedure for light material removal.

(4)  
To clean large areas, use non-atomizing spray equipment, swabs, and brushes. To clean small areas, use rags, brushes, and sponges. Do not clean an area so large that the cleaner dries on the surface before you can flush it with water.

B.  Referenced Procedures
(1)  
20-41-11/201, Static Grounding

(2)  
32-00-01/201, Landing Gear Door Locks

501 
May 01/98  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  12-40-0 Page 201 

C. Equipment and Materials
(1)
Pitot Static Probe Protective Covers

(2)
Pitot Probe Cover

(3)
Main Landing Gear Door Locks (Ref. 32-00-01)

(4)
Nose Landing Gear Door Locks (Ref. 32-00-01)

(5)
Spray Equipment - Ted Trump Co., Highway 98 East, Elberta, Alabama

(6)
Source of compressed air - commercially available

(7)
Mops - commercially available

(8)
Boots - commercially available

(9)
Gloves - commercially available

(10)
Face mask or goggles - commercially available

(11)
Apron - commercially available

(12)
Rain Repellent-Residue Removal Pad - Leader 275G (Ref. 20-30-51)

(13)
Degreasing Fluid - MIL-T-81533A (Ref. 20-30-31)

(14)
Solvent (Common) - TT-N-261 (Ref. 20-30-31)

(15)
Cleaner - Oakite 74L (foam cleaning) (Ref. 20-30-31)

(16)
Soft-bristle fiber brush (Ref. 20-30-31)

(17)
Cleaning Solvent - BMS 3-2, Type I (Ref. 20-30-31)

(18)
B00316 Solvent - Aliphatic Naphtha, TT-N-95 Type I

(19)
G02443 Orange Barricade tape, 3-inches wide, 4-mils thick, non-adhesive, with "REMOVE BEFORE FLIGHT" printed on it in black letters

(20)
G02219 3M Scotch brand no. 471 vinyl adhesive tape (1.5-inches wide), bright yellow color.

(21)
G02444 Red paper tag (3-inches wide, 6-inches long) with attaching wire that has "STATIC PORTS COVERED" printed on it in black letters.

(22)
G02447 Red paper tag (3-inches wide, 6-inches long) with attaching wire that has "PITOT PROBES COVERED" printed on it in black letters.

(23)
G00252 Black polyethylene sheet, 6-mils thick

(24)
Table I: Water-Base Alkaline Cleaners (Ref. 20-30-31)

(25) Table II: Solvent Emulsion Cleaners (Ref. 20-30-31)

(26)
Table III: Heavy Duty Cleaners (Ref. 20-30-31)

DILUTION RATIO:  NUMBER VOLUMES OF WATER PER ONE VOLUME OF CLEANER 
CLEANER  LIGHTLY DIRTY  MODERATELY DIRTY  VERY DIRTY 
PACIFIC CHEMICAL B-82 KELITE 28 CEEBEE 280 OAKITE 204 TEC NO. 1 METACLEAN AC DUBOIS C-1102 CALLA 301 PENNSALT 2271R TURCO JET CLEAN C  7 10 10 10 10 10 10 10 10 20  3 4 4 4 4 4 4 4 3 5  2 2 2 2 2 2 3 3 2 3 

Water Base Alkaline Cleaners  501 
12-40-0  Table I  May 01/98 
Page 202 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

DILUTION RATIO: NUMBER OF VOLUMES OF WATER AND CLEANING SOLVENT PER ONE VOLUME OF CLEANER 
CLEANER  WATER  CLEANING SOLVENT 
ANY CLEANER IN  TABLE I  2  5 TO 6 

DILUTION RATIO: NUMBER OF VOLUMES OF WATER AND CLEANING SOLVENT PER ONE VOLUME OF CLEANER 
CLEANER  WATER  CLEANING SOLVENT 
AIRSHOW W NAVEE 427 GREASE SOLVE  5 TO 15 3 TO 5  6 TO 12 

D.  Prepare to Clean the Airplane
NOTE:  Be careful when you clean the airplane in very hot weather. The heated surface of the airplane can dry the cleaners before you can flush them with water. The dried cleaners can stain the surface.
(1)  
Move all of the equipment that you will use with flammable solvents away from sources of heat.

WARNING:  KEEP ALL OF THE EQUIPMENT THAT YOU USE WITH FLAMMABLE SOLVENTS AWAY FROM SOURCES OF HEAT. IF THERE IS WIND, MAKE SURE THE SOLVENTS DO NOT FALL ON ELECTRICAL EQUIPMENT OR WARM COMPONENTS.
　
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