SEA94LA217

NTSB accident investigation · Allen D. Potts WAG-A-BOND · Benton City, WA · August 21, 1994

Accident · Minor injuriesLimited investigationFinal report
Date
August 21, 1994, 09:05 local (16:05 UTC)
Place
Benton City, WA
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N47ATAllen D. Potts WAG-A-BOND
Weather
Visual (VMC) · Day
Status
Completed · report March 13, 1995
Report
Approved by Office Director
FAA report
19940821026669A
Case key
42004

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

Fuel starvation and inadequate compensation for wind conditions. A factor to the accident was soft 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.

Loss of engine power(total) - nonmechanicalDescent - normal
Fluid,fuel - starvationCause
Compensation for wind conditions - inadequatePilot in commandCause
Forced landingDescent - emergency
Nose overLanding - roll
Terrain condition - softFactor

Analysis

While descending to the airport, the pilot stated that the engine lost power. The pilot initiated a forced landing to a dirt road; however, due to strong winds at the surface, the airplane drifted off the road and landed in an open field. During the landing roll, the airplane nosed over on the soft dirt. The pilot reported that there were no mechanical failures or malfunctions with the engine, but that he suspected fuel starvation that resulted in the loss of engine power.

Factual narrative

On August 21, 1994, at 0905 Pacific daylight time, a homebuilt Allen D. Potts Wag-A-Bond, N47AT, nosed over during the landing roll on an open field after the engine experienced a loss of power, five miles south of Benton City, Washington. Visual meteorological conditions prevailed at the time and no flight plan was filed. The airplane was substantially damaged and the commercial pilot received minor injuries. The pilot rated passenger was not injured. The flight had departed from Vancouver, Washington, on August 21, 1994, at 0800, as a personal flight.

The pilot reported that during the descent for landing to Kennewick, Washington, the engine experienced a loss of power. The airplane was unable to make it to the airport and the pilot elected to initiate a forced landing, to the south, on a dirt road. During the approach, a strong wind from the west was present. The pilot was unable to remain aligned with the road and the airplane touched down in a plowed field next to the road. During the landing roll in soft dirt, the airplane nosed over.

The pilot reported that there were no mechanical failures or malfunctions with the engine, however, during a telephone interview the pilot stated that he suspected fuel starvation that resulted in the loss of engine power.

The Federal Aviation Administration Inspector from the Renton, Washington, Flight Standards District Office, reported that several gallons of fuel vented from the wing when the airplane was turned right-side-up. The pilot reported to the Inspector that one hour and fifteen minutes of fuel remained in the system at the time of the accident.

Aircraft

Registration
N47AT
Reported as
Allen D. Potts WAG-A-BOND
Category
Airplane, amateur-built
Serial number
147
Airframe hours
444
Engine
Lycoming O-320-A2C, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Potts, Allen D.
Registered owner
Potts, Allen D.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 20, 1994 · 10 hours before
Departed
59S · Vancouver, WA
Destination
S98 · Kennewick, WA

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
54
Certificate
Private
Airplane ratings
Single-engine land
Medical
Invalid Medical for flight
Seat
Left
Flight hours
556 total · 445 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 12 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
61 °F

FAA reports on this event · 1

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