Aviation Accident Summary ATL90DKJ07

CLAYHATCHEE, AL, USA

Aircraft #1

N7153

Bell-Continental Copters 47G

Analysis

THE PLT RPRTD THAT DURING AN AERIAL APPLICATION FLT, THE ENG LOST POWER AS HE MANEUVERED THE HELICOPTER (PULLED UP) OVER A TREE LINE. AN AUTOROTATIVE LANDING WAS MADE IN THE TREES. AN INVESTIGATION REVEALED THE LEFT MAGNETO WOULD NOT FIRE; HOWEVER, IT FUNCTIONED NORMALLY AFTER ITS COIL WAS RELACED. ENG RECORDS INDICATED THE MAGNETOS HAD BEEN OVERHAULED ON 1/14/80, APRX 96 FLT HRS BEFORE THE ACDNT.

Probable Cause and Findings

FAILURE OF THE ENGINE MAGNETO(S). THE LACK OF SUITABLE TERRAIN (TREES) IN THE EMERGENCY LANDING AREA WAS A RELATED FACTOR.

 

Source: NTSB Aviation Accident Database

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