TOUTLE, WA, USA
N779FA
HUGHES 369D
PLT WAS OPERATING HELICOPTER AT 120 FT AGL WITH THE AUX FUEL PUMP ON WHEN A TTL LOSS OF PWR OCCURRED. AUTOROTATION WAS ENTERED BUT A HARD LANDING RESULTED IN THE MAIN ROTOR BLADES CUTTING OFF THE TAIL BOOM. INVESTIGATION REVEALED A FUEL SAMPLE TAKEN FROM THE ENGINE FUEL PUMP FILTER CHAMBER CONTAINED SEVERAL DIFFERENT TYPES OF CONTAMINTATION PARTICLES. SOME OF WHICH WERE FROM A DETERIORATING FUEL PUMP BUSHING.
Source: NTSB Aviation Accident Database
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