BFO93LA076

NTSB accident investigation · Hockenbury Bowers FLY Baby · Peapack, NJ · May 9, 1993

Accident · Minor injuriesLimited investigationFinal report
Date
May 9, 1993, 12:04 local (16:04 UTC)
Place
Peapack, NJ
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N80PHHockenbury Bowers FLY Baby
Weather
Visual (VMC) · Day
Status
Completed · report October 25, 1993
Report
Approved by Office Director
FAA report
19930509012579A
Case key
11936

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malfCruise - normal
Fuel system,carburetor - disabledCause
Forced landingDescent - emergency
In flight collision with objectLanding
Object - tree(s)
Terrain condition - none suitableFactor

Analysis

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.

Aircraft

Registration
N80PH
Reported as
Hockenbury Bowers FLY Baby (BOWERS FLY)
Category
Airplane, amateur-built
Serial number
3934
Airframe hours
409
Engine
Continental C-85-12, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Peter Hockenbury
Registered owner
Peter Hockenbury
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 15, 1991 · 34 hours before
Departed
N12 · Lakewood Arpt, NJ
Destination
N07 · Lincoln Park, NJ

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
67
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
587 total · 402 in this make and model · 512 as pilot in command · 10 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 6 knots
Visibility
12 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
NWK, 20 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.