11R.32.050   Electrical operation.
   During fuel handling for any aircraft, no person shall operate any radio transmitter or receiver or switch electrical appliances on or off in such aircraft, nor shall any person act in any manner or use any material within fifty (50) feet of such aircraft which is likely to cause a spark.
(Res. No. 149 75-76 (part), Res. No. 68 86-87 §1 (part))