NTSB Identification: BFO93LA076.
The docket is stored on NTSB microfiche number 50369.
Accident occurred Sunday, May 09, 1993 in PEAPACK, NJ
Probable Cause Approval Date: 10/25/1993
Aircraft: HOCKENBURY BOWERS FLY BABY, registration: N80PH
Injuries: 1 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
WHILE AT CRUISE, THE AIRPLANE'S ENGINE LOST PARTIAL POWER. THE PILOT REPORTED THAT HE APPLIED CARBURETOR HEAT AND CHECKED THE OIL TEMPERATURE AND PRESSURE. THE ENGINE DID NOT REGAIN POWER. THE PILOT ATTEMPTED TO MAKE A FORCED LANDING IN A YARD BELOW THE AIRPLANE'S FLIGHT PATH BUT DURING THE APPROACH TO LANDING, THE AIRPLANE COLLIDED WITH TREES. THE AIRPLANE FELL TO THE GROUND AND CAME TO REST INVERTED. POST ACCIDENT EXAMINATION OF THE AIRPLANE DID NOT REVEAL ANY AIRFRAME ANOMALIES. THE ENGINE WAS DISMANTLED AND EXAMINED. EXAMINATION OF THE CARBURETOR REVEALED THAT THE THROTTLE VALVE ACTUATING ARM, WHICH WAS FASTENED TO THE THROTTLE SHAFT, WAS LOOSE AND THEREFORE WOULD NOT OPEN THE THROTTLE VALVE FULLY.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE FAILURE OF THE THROTTLE VALVE ACTUATING ARM WHICH RESULTED IN PARTIAL OPENING OF THE THROTTLE VALVE. A FACTOR RELATED TO THE ACCIDENT WAS THE UNSUITABLE TERRAIN AVAILABLE FOR LANDING.
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