(d)  
Put an 8-inch piece of vinyl adhesive tape horizontally over the barricade tape below the static portholes, overlapping the two vertical strips of adhesive tape (Fig. 202, Step 4).

(e)  
The barricade tape should be allowed to stream down so it is visible from the ground.

(8)  
Attach a red paper tag that has “STATIC PORTS COVERED” printed on it in black letters, to the top of the left control wheel in the flight deck with wire.

(9)  
Use plastic membranes to cover the components in Table IV. All of the components are identified in Fig. 203, 204 and 205.

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G87623
501  Static Port Cover Procedure 
May 01/01  Figure 202 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  12-40-0 Page 207 

 Table IV  501 
12-40-0 Page 208  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  May 01/98 

501  Aileron Power Control Unit 
May 01/98  Figure 203 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  12-40-0 Page 209 

A/P Aileron Actuator  501 
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Page 210 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

501  Spring Cartridge 
May 01/98  Figure 205  12-40-0 
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BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

(10)
Wear gloves and goggles to prevent injury to your skin and eyes. Wear a safety harness when you walk on wet surfaces above the ground.

WARNING:  WEAR CLOTHING AND EQUIPMENT THAT WILL PREVENT INJURY WHEN YOU CLEAN THE AIRPLANE. THE LIQUIDS USED IN THIS PROCEDURE CAN CAUSE INJURY TO SKIN AND EYES. WET AIRPLANE SURFACES ARE DANGEROUS WHEN YOU WALK ON THEM.

(11)
Do not let the tires stay in the liquid that was used to clean the airplane.

(12)
Make sure the brakes are properly covered.

CAUTION:  MAKE SURE MIXTURE OR WATER DO NOT GET IN THE STEEL OR CARBON BRAKE HEAT SINKS. CONTAMINATION CAN CAUSE DAMAGE TO CARBON BRAKES AND REDUCE BRAKE PERFORMANCE FOR CARBON AND STEEL BRAKES.

(13)
Examine the cleaner before you use it. If the cleaner does not look mixed, then mix it again. Examine the cleaner again after one hour. Discard the cleaner if it does not stay in a mixed condition.

CAUTION:  DO NOT USE A CLEANER IF IT IS IN A STRATIFIED (NOT MIXED) CONDITION. A CLEANER THAT IS STRATIFIED CAN STAIN OR CAUSE CORROSION TO AIRPLANE SURFACES.
E.  Clean the Airplane
(1)  Remove Light Material (dust and dirt) from Smooth Surfaces
(a)  
Move the flaps to the fully retracted position.

NOTE:  To clean the flaps in the extended position, refer to the Remove Material Around Sensitive Components procedure.

(b)  
Mix the water-base alkaline cleaner from Table I for the condition of the surface that you will clean.

CAUTION:  DO NOT USE THE CLEANERS IN HIGHER CONCENTRATIONS THAN SHOWN IN TABLE I. HIGHER CONCENTRATIONS CAN CAUSE DAMAGE TO ACRYLIC WINDOWS, STAINS ON PAINTED SURFACES, AND CORROSION ON METALS.

(c)  
Apply water to the area you will clean.

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CAUTION:  DO NOT USE HIGH-PRESSURE SPRAY EQUIPMENT TO CLEAN MECHANICAL, ELECTRICAL, OR HYDRAULIC COMPONENTS. LIQUIDS THAT GET INTO THESE AREAS CAN CAUSE CORROSION, FREEZE DURING AIRPLANE FLIGHT, OR REMOVE NECESSARY LUBRICANTS.
CAUTION:  KEEP THE NOZZLE OF THE SPRAY EQUIPMENT MORE THAN 12 INCHES AWAY FROM THE SURFACE OF THE AIRPLANE. THE SPRAY CAN CAUSE DAMAGE TO THE SURFACE.
(d)  
Apply the cleaner to the applicable area with non-atomizing spray equipment, swabs, or brushes.

NOTE:  To prevent scratches on the surface, soak the brushes in the cleaner before you use them.
　
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