INTERIOR MATERIALS - MAINTENANCE PRACTICES 1. General A. This section describes the procedures to be used when cleaning or repairing various decorative materials of the airplane interior. It incorporates information in Boeing Document D6-1910, Repair Procedures for Interior Materials on Commercial Aircraft. B. Cleaning procedures for fabric and carpet are included. C. Figure 201 tabulates the various decorative materials and specifies the number of the cleaning and repair methods recommended for each type of material. D. Decorative interiors are originally finished with lacquers or enamels in a controlled factory environment. However, certain latex paints of equivalent color may be used as optional decorative finishes. Such paints may be applied without normal safety precautions normally required during lacquer applications, and thus may be applied with power on the aircraft. The recommended brands of latex paints are as follows: (1) Atlas AC500 - XX, Atlas Chemical Co., Miami, Florida (2) Walker W32 - XXXX, Walker Paint Co., Sunnyvale, California NOTE: In both cases, the identification "X" indicates color-code letter or digit. E. Detergent solutions should be mixed in the proportions indicated and stored in dispensing containers. Put solvents in clean polyethylene wash bottles prior to use. 2. Cleaning Methods A. General (1) The following Cleaning Methods numbered 1 thru 9, correspond with the numbers listed in Fig. 201 as methods of cleaning aircraft interiors. B. Cleaning Methods No. 1 (1) Equipment and Materials (a) Soap - Orvus or Vel (2) Clean: (a) Clean vinyl surfaces by use of mild soap (Orvus WA Paste or Vel and lukewarm water). (b) Rinse with clean water and wipe dry with clean cloth. C. Cleaning Method No. 2 (1) Equipment and Materials (a) Cleaning Solution - Terecote No. 60 -1 and -2 (2) Clean (a) Wash with clean cloth saturated with Terecote No. 60, Cleaning Solution No. 1. (b) Wash thoroughly with cloth saturated with Terecote No. 60, Cleaning Solution No. 2. (c) Wipe dry with clean cloth. Allow surface to dry thoroughly before applying finish.
*[1] Type I Damage: Scratches and small cuts; damage, which affects only the surface texture *[2] Type II Damage: Cuts or tears, which completely penetrate the decorative material *[3] Type III Damage: Bubbled or delaminated areas of decorative material bonded to a substrate *[4] Unpainted *[5] Painted *[6] Remove old adhesive by light sanding or scraping. Clean faying surfaces with ethyl alcohol prior to bonding. *[7] Rebonding, Method 15 *[8] Non-Skydrol areas only
D. Cleaning Method No. 3 (1) Equipment and Materials (a) Ethyl alcohol (b) Gauze pads (2) Clean: (a) Mix 1 part ethyl alcohol with 1 part water. (b) Clean greasy material by swabbing on ethyl alcohol and water solution with a clean gauze pad. (c) Wipe off with a clean dry gauze pad. (Do not allow solvents to evaporate from surface.) (d) Wipe dry. WARNING: ETHYL ALCOHOL (ETHANOL/DENATURED) IS FLAMMABLE AND MAY AFFECT EYES, SKIN AND RESPIRATORY TRACT. USE IN A WELL-VENTILATED AREA. AVOID PROLONGED BREATHING OF VAPORS. AVOID EYE AND REPEATED SKIN CONTACT. KEEP AWAY FROM SPARKS AND FLAMES. E. Cleaning Method No. 4 (1) Equipment and Materials (a) Solvent - acetone (b) Swab - gauze pad taped to tongue depressor (2) Clean: (a) Moisten swab with solvent. (b) Rub soiled area with swab. (c) Dry with dry gauze pad. (d) Repeat (b) and (c) if necessary. F. Cleaning Method No. 5 (1) Equipment and Materials (a) Hydrogen peroxide WARNING: HYDROGEN PEROXIDE IS EXTREMELY TOXIC AND SHOULD NOT BE ALLOWED TO COME IN CONTACT WITH THE SKIN. (b) Swab - gauze pad taped to tongue depressor (2) Clean: (a) Mix solution of 37 percent hydrogen peroxide in water. (b) Moisten swab with solution. (c) Rub stained area with swab. (d) Dry with dry gauze pad. (e) Repeat (c) and (d) if necessary. G. Cleaning Method No. 6 (1) Equipment and Materials (a) Solvent - Aliphatic Naphtha TT-N-95A
(2) Clean: (a) Moisten gauze pad with solvent. (b) Rub soiled area with gauze pad. (c) Dry with clean dry gauze pad. (Do not allow solvents to evaporate from the surface.) WARNING: NAPHTHA IS FLAMMABLE AND HAZARDOUS. USE IN A WELL VENTILATED AREA. AVOID PROLONGED BREATHING OF VAPORS. AVOID EYE AND SKIN CONTACT. KEEP AWAY FROM SPARKS AND FLAMES. H. Cleaning Method No. 7 NOTE: Detergents listed below have no flash point. (1) Equipment and Materials (a) High Concentrate 40.1 Soapless Base - Rug, Carpet and Upholstery Shampoo, mix 1 part cleaner to 32 parts water (b) Spraywhite E - mix 1 part cleaner to 10 parts water (c) Clean quick - mix 1 part cleaner to 64 parts water (d) Orvus W.A. Paste - mix 1 part cleaner to 30 parts water (e) Glo Do-All Formula 3B Rug Shampoo - mix 1 part cleaner to 30 parts water (f) Glo Do-All Formula 1B - mix 1 part cleaner to 20 parts water (2) Regular Cleaning (a) Vacuum carpet or upholstery thoroughly to remove loose particles. (b) Prepare a solution of one of the detergents listed. Work shampoo solution into a thick, foamy lather. WARNING: WEAR PROTECTIVE GLOVES WHEN USING SOLVENTS AND CLEANERS. USE ONLY WITH ADEQUATE VENTILATION. (c) Apply foam only to carpet or upholstery with a sponge or medium fiber bristle brush. Scrub gently using a circular motion, overlapping each circle. Work only a small area at one application. Do not soak material. (d) Brush pile in one direction to lift and straighten fiber. Avoid excessive brushing or rubbing on pile surfaces as this may result in unsightly fuzzing or distortion of surface. (e) Dry material thoroughly, then vacuum suspended soils. I. Cleaning Method No. 8 NOTE: Detergents listed below have no flash point. (1) Equipment and Materials (a) High Concentrate 40.1 Soapless Base, Rug, Carpet and Upholstery Shampoo - mix 1 part cleaner to 32 parts water (b) Spraywhite E - mix 1 part cleaner to 10 parts water (c) Clean quick - mix 1 part cleaner to 64 parts water (d) Orvus W.A. Paste - mix 1 part cleaner to 30 parts water (e) Glo Do-All Formula 3B Rug Shampoo - mix 1 part cleaner to 30 parts water (f) Glo Do-All Formula 1B - mix 1 part cleaner to 20 parts water
(2) Cleaning of Soft or Uncured Spots NOTE: Remove spots as soon as possible. Many spots become difficult or impossible to remove with age. This procedure applies to removal of soft or uncured soils such as fresh paint, grease, permanent ink, oil, jet fuel, hydraulic fluid, powdered graphite, and powdered aluminum. (a) Where applicable, blot up as much of stain as possible using absorbent paper or wipers. (b) Spray one of the detergent solutions listed onto soiled area. Allow to soak 30 seconds. WARNING: WEAR PROTECTIVE GLOVES WHEN USING SOLVENTS AND CLEANERS. USE ONLY WITH ADEQUATE VENTILATION. (c) Add an additional amount of detergent solutions to spot and work fibers with blunt end of a bone scraper. As detergent works into a foam, minute particles of soil are carried up into foam mass. (d) Pick up foam with a wet-pickup hand vacuum cleaner or with a scraper such as a spatula. (e) Blot up retained moisture with paper toweling or wipers. (f) Reapply detergent to soiled area. (g) Repeat steps (a) thru (f) as required until soil has been removed. (h) Brush pile in one direction to lift and straighten fibers. (3) Inspect carpets, identify dirty spots and clean up as follows: (a) Mop up with paper towels if damp. Wipe up butter, chocolate, jam, sauces and other dirt that cannot be vacuumed with paper towels. (b) Vacuum carpet. (c) Using a mixture of cold water and detergent/shampoo wash any spots on the carpet using a soft nylon bristle brush. NOTE: Water and detergent/shampoo solution must be mixed per manufacturers instructions. NOTE: The carpet pile must not be soaked/wet unnecessary while removing the spots. (d) Mop with paper towel to remove as much of the solution as possible. (e) Rinse spot with fresh water and dry with paper towels. Leave to air dry. (f) If it was not possible to remove spots as per paragraph (a) and (c) above, a solution of 1 part vinegar and 1 part water should be used. NOTE: Perchlorethylene can be used on spots that could not be cleaned per the above procedures once the carpet is dry. (g) If a spot could not be removed as per above, place a metal plate under the carpet to protect the floor, cut out the stain and fit a new piece of carpet into the cut out. Stick carpet and patch to the floor using double sided tape. CAUTION: CUTTING THE SKIN FIBRES OF THE FLOOR PANEL WILL RESULT IN PREMATURE FAILURE OF THE FLOOR PANEL. |