On June 22, 1994, at 1530 central daylight time, a Hiller UH- 12L4, N90453, impacted a levy after a power loss during initial climb following takeoff. The pilot was not injured and the helicopter was destroyed by impact and postimpact fire. Visual meteorological conditions prevailed for this aerial application flight and no flight plan was filed. Departure was from the Buren Griffin Farms, 5 miles south of West Helena, Arkansas. According to the pilot, some electrical lines and the main fuel line were routed through the same area and held in place by a common clamp. An electrical line shorted and burned a hole in the fuel line. The pilot stated that the routing of the lines together was pointed out to him by a mechanic and he was told this was a potentially unsafe installation. The pilot said that had he followed the mechanic's advice and rerouted the lines the accident would not have happened. In addition, the pilot stated he had to perform a down wind autorotation from about 50 feet and landed hard on the down slope of a levy.