A. Cleaning, Painting And Refurbishing Operations:
1. No person shall use flammable, volatile liquids having a flash point of less than one hundred degrees Fahrenheit (100°F) to clean aircraft, aircraft engines, propellers, appliances or for any other purpose unless such operation is conducted in open air or in a room specifically set aside and approved for that purpose. This room must be properly fireproofed and equipped with adequate and readily accessible fire extinguishing apparatus.
2. The procedures and precautions outlined in the criteria of the National Fire Protection Association (NFPA pamphlet no. 401D, "Safeguarding Aircraft Cleaning, Painting And Paint Removal", and NFPA pamphlet no. 410F, "Aircraft Cabin Cleaning And Refurbishing Operations"), including any amendments thereto, shall be followed in all cleaning, painting and refurbishing operations. (1978 Code §4-90)
B. Cleaning Floors: Hangar and shop area floors shall be kept clean and free of oil. Volatile flammable solvents shall not be used to clean floors. (1978 Code §4-95)
C. Drip Pans: Drip pans shall be placed under aircraft engines when recommended or required by aircraft designers. The pans shall be cleaned regularly and shall not be used or allowed to store flammable materials. (1978 Code §4-96)