On May 4, 2000, about 1300 eastern daylight time, a Cessna 152, N92995, registered to T and D Ventures, and operated by Comair Aviation Academy as a Title 14 CFR Part 91 instructional flight, collided with a fence during taxi for takeoff at Sanford, Florida. Visual meteorological conditions prevailed, and no flight plan was filed. There were no injuries to the commercial-rated flight instructor and the dual student. The airplane incurred substantial damage. The flight was originating at the time of the accident. The flight instructor stated that the student was taxiing the airplane from parking to the run-up area prior to an instructional flight. The instructor further stated that he was preoccupied looking at the low voltage light, since it was flashing on and off. He stated that the airplane was fast, to the left of the centerline, and close to the fence when he took the controls over, applied the brakes, retarded the throttle, and applied right rudder to try to avoid the fence. He said he had only 2 to 3 seconds to respond after noticing the problem, but the left wing hit the fence. The student pilot stated that his attention was diverted, and he was looking at the right wing to see if he was clear of parked airplanes, when the left wing hit the fence. The FAA inspector who examined the accident airplane noted that the leading edge of the wing was pushed aft about 4 inches at the furthermost outboard rib, and the aft spar had buckled approximately 18 inches outboard the fuselage.