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NTSB Report
May 9, 1993 · Hockenbury Bowers FLY BABY Bowers FLY · N80PH
Peapack, NJ
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 9, 1993
Injury Outcomes
1 injury (1 minor injury)
Location
Peapack, NJ
Aircraft
Hockenbury Bowers FLY BABY Bowers FLY
Tail Number
N80PH
Operator
Peter Hockenbury
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
BFO93LA076
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.
NTSB Probable Cause
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.
Full Narrative
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.
Flight
Event TypeAccident
Event Time12:04 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHockenbury Bowers FLY BABY Bowers FLY
Tail NumberN80PH
Aircraft CategoryAir
DamageSubstantial
OperatorPeter Hockenbury
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C-85-12 · Reciprocating · 85
Seats1
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 67 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind220° @ 6 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point54
Altimeter30.00 inHg
Observation Time16:00
Weather SourceWFAC