TOLLESON, AZ, USA
N4034T
HILLER UH-12E
THE PLT STATED THAT HE LANDED THE ACFT ON A PLATFORM ON TOP OF A CHEMICAL TANK TRUCK. THE TRUCK WAS PARKED ON A SLIGHT SLOPE WITH ITS LEFT SIDE SIX INCHES LOWER THAN THE RIGHT. THE PLT REDUCED POWER TO IDLE AND THE LOADER BEGAN TO LOAD THE HELICOPTER WITH LIQUID CHEMICAL. THE HELICOPTER'S TAIL BEGAN TO DROP AND BEFORE THE PLT COULD INCREASE POWER TO RESUME FLIGHT, THE HELICOPTER FELL OFF THE PLATFORM (A HEIGHT OF 12 FEET) AND WAS DESTROYED BY FIRE.
Source: NTSB Aviation Accident Database
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