NYC92DHA03

NTSB accident investigation · Parrish, Paul SKY Bolt · Mehoopany, PA · June 2, 1992

Accident · Serious injuriesFinal report
Date
June 2, 1992, 15:30 local (19:30 UTC)
Place
Mehoopany, PA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N261PParrish, Paul SKY Bolt
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 1993
Report
Approved by Office Director
FAA report
19920602017949A
Case key
37034

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 pilot inadvertently stalled and spun the airplane at too low an altitude to allow recovery. Contributing to the accident was an engine vibration caused by a broken number 3 exhaust valve. The exhaust valve caused extensive internal damage to the engine.

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/malfApproach
Powerplant - vibrationFactor
Engine assembly,valve,exhaust - failure,totalFactor
Forced landingDescent - emergency
Loss of control - in flightGo-around (vfr)
Stall/spin - inadvertentPilot in commandCause
In flight collision with terrain/waterLanding - aborted
Terrain condition - ground

Analysis

At cruise altitude the engine started to vibrate. During the force landing the pilot felt that the speed of the airplane was too fast so elected to go around and attempt another approach. The pilot turned the airplane away from the intended landing site, and while in the turn the airplane stalled and spun into the ground. An examination of the engine revealed that the number 3 exhaust valve failed due to corrosion and extensive internal damage was found in the engine.

Aircraft

Registration
N261P
Reported as
Parrish, Paul SKY Bolt
Category
Airplane, amateur-built
Serial number
0061PA
Airframe hours
1,674
Engine
Lycoming O-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Linda Schneider
Registered owner
Linda Schneider
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 20, 1992 · 59 hours before
Departed
76N · Tunkhannock, PA
Destination
76N

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
42
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
159 total · 59 in this make and model · 156 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Lowest ceiling
None

FAA reports on this event · 1

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