BRICKTOWN, NJ, USA
N67155
HILLER UH-12D
THE PLT REPORTED AN ERRATIC RPM DROP & A PARTIAL LOSS OF POWER DURING A SWATH RUN. THIS OCCURRED WHEN THE HELICOPTER WAS APRX 10 FT ABOVE TREES AT APRX 40 KTS. THE ACFT BEGAN LOSING AIRSPEED & ALTITUDE. DURING AN EMERGENCY LANDING, THE TAIL ROTOR & MAIN ROTOR BLADES STRUCK TREE BRANCHES & THE PLEXIGLASS & LANDING GEAR WERE DAMAGED. DURING AN INVESTIGATION, THE IGNITION HARNESSES WERE CHECKED & THE #4 & #6 LEAD ASSEMBLIES, PN 10-720642, SHOWED LEAKAGE AT THE SLEEVE ASSEMBLY POINT (BENDIX PN 10-320473). A PARTIAL TEARDOWN OF THE ENG REVEALED NO OTHER PREIMPACT MECHANICAL FAILURE.
Source: NTSB Aviation Accident Database
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