BFO90LA004

NTSB accident investigation · Piper PA-23-150 · Wytheville, VA · October 29, 1989

Accident · Minor injuriesLimited investigationFinal report
Date
October 29, 1989, 02:40 local (07:40 UTC)
Place
Wytheville, VA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2224PPiper PA-23-150
Weather
Visual (VMC) · Night/bright
Status
Completed · report June 22, 1992
Report
Approved by Office Director
FAA report
19891029043479A
Case key
11563

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 loss of propeller control which resulted in engine shutdown and subsequent forced landing on unsuitable terrain.

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.

Airframe/component/system failure/malfunctionCruise - normal
Propeller system/accessories - undeterminedCause
Loss of engine powerCruise - normal
Forced landingLanding - flare/touchdown
Terrain condition - none suitableFactor
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - bermFactor

Analysis

While in cruise flt at 6,500 ft, at a power setting of 2500 RPM with 21 inches mp, the plt stated he was unable to synchronize the left prop. He stated the prop then decreased to 1500 RPM, surged to 3000, then dropped back to 1500. He attempted to feather the prop but was unable to do so. Unable to maintain alt with power from the right eng, the plt made a forced landing on an interstate. During the landing roll, the left wing contacted an embankment and the acft veered off the side of the interstate. A fire started in the right engine and the right wing was destroyed. Post accident inspection of the left propeller failed to reveal any reason why the fluctuation in RPM had occurred. Nor did it reveal why the prop would not feather. Water was found throughout the left engine fuel system. The props had been overhauled prior to this flt. The left prop governor was bench tested and although capable of operation was found to be operating slightly out it's specified operating range.

Aircraft

Registration
N2224P
Reported as
Piper PA-23-150
Category
Airplane
Serial number
23833
Airframe hours
2,589
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Robert J. Nichols
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 28, 1989 · 5 hours before
Departed
19J · Homerville, GA
Destination
CHO · Charlottesville, VA

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
27
Certificates
Airline transport, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,975 total · 15 in this make and model · 2,742 as pilot in command · 290 in the last 90 days · 100 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/bright
Wind
70° at 4 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
54 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
BLF, 21 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.