NTSB Identification: NYC85LA005.
The docket is stored on NTSB microfiche number 26739.
Nonscheduled 14 CFR
Accident occurred Sunday, October 07, 1984 in MOULTONBORO, NH
Aircraft: BELL 47G3-B1, registration: N401GC
Injuries: 3 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.ACFT WAS CLIMBING THROUGH A MOUNTAIN SADDLE WHEN THE ENGINE BEGAN TO BACKFIRE AND LOSE POWER. PLT ENTERED AUTOROTATION & SETTLED INTO TREES ON AUTOROTATIVE FLARE. ENGINE INSPECTION REVEALED #3 CYLINDER INTAKE VALVE SPRINGS BROKEN.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
ENGINE ASSEMBLY,VALVE,INTAKE..DISABLED
Contributing Factors
TERRAIN CONDITION..MOUNTAINOUS/HILLY
Contributing Factors
TERRAIN CONDITION..HIGH VEGETATION
Contributing Factors
OBJECT..TREE(S)
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