MIA01LA128

NTSB accident investigation · Steen Aero Lab Skybolt I · Germantown, TN · April 25, 2001

Accident · No injuriesLimited investigationFinal report
Date
April 25, 2001, 16:25 local (21:25 UTC)
Place
Germantown, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N14DESteen Aero Lab Skybolt I
Weather
Visual (VMC) · Day
Status
Completed · report October 23, 2001
Report
Approved by Office Director
Parties
FSDO FAA
FAA report
20010425008999A
Case key
52165

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's failure to conduct proper preflight planning and preparation, resulting in fuel exhaustion during cruise flight, and the subsequent emergency descent and forced landing to a residential street colliding with a vehicle, utility pole, mail box, and street sign.

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) - nonmechanicalCruise
Preflight planning/preparation - improperPilot in commandCause
Fluid,fuel - exhaustionCause
Forced landingEmergency descent/landing
In flight collision with objectEmergency descent/landing
Object - vehicle
Object - utility pole
Object - sign

Analysis

According to the pilot, as a result of his preflight walk-around inspection, he felt confident that he had at least 12 gallons of fuel on board. Since his planned flight was for about 20 minutes, and knowing fuel burn is about 8.5 gallons an hour, he felt he had adequate fuel aboard. Actually, the fuel aboard was about 4 gallons, and 10 minutes into the flight, the engine quit while he was overhead a residential area of Germantown at 1500 feet msl. He reasoned that his only alternative was a forced landing to a residential street, and during the landing, the aircraft sequentially collided with an automobile rear window with the landing gear, a utility pole and mailbox with the wings, and a street sign with the horizontal stabilizer. Postcrash examination by FAA inspectors and the pilot revealed no evidence of fuel aboard.

Factual narrative

On April 25, 2001, at about 1625 central daylight time, a Steen Skybolt I, N14DE, registered to a private individual, operating as a Title 14 CFR Part 91 personal flight, crashed while maneuvering near Germantown, Tennessee. Visual meteorological conditions prevailed and no flight plan was filed. The aircraft received substantial damage, and the airline transport-rated pilot, the sole occupant, was not injured. The flight departed a private airstrip near Germantown about 10 minutes before the accident.

According to the pilot, based on 20 years of experience with the aircraft, he determined on his preflight walk around inspection that he had 1/2 tank of fuel, (12 gallons) onboard. His planned flight was 20 minutes, and with a known fuel burn of 8.5 gallons/hour, he was comfortable with the fuel. Start-up, departure, and climb to 1,500 feet agl, were normal until about 1620, when he started losing engine power. During his turn away from a populated area, the engine quit completely, and all attempts at a restart were unsuccessful. His best selection for an emergency landing was a residential street. During the emergency landing, his landing gear collided with a car rear window, the right wing collided with a utility pole, the left wing collided with a wooden mailbox, and the right stabilizer collided with a street sign. He was not injured, and he immediately selected the fuel valve to "off" for safety reasons.

According to two FAA inspectors, about 1/2 pint of fuel was found in the 29-gallon fuel tank. The aircraft wreckage or the surrounding area revealed no signs of fuel or fuel spillage. Examination of the engine, firewall, and fuel system components revealed no evidence of leakage. The bottom of the fuselage revealed no signs of fuel stains. The inspectors had the pilot open the fuel valve and attempt to sump fuel out of the aft fuel drain with no results. The front fuel drain yielded about five drops of aviation fuel. The pilot stated to them that he thought he had at least 12 gallons of aviation fuel aboard, when he actually had 4 gallons aboard.

Aircraft

Registration
N14DE
Reported as
Steen Aero Lab Skybolt I
Category
Airplane, amateur-built
Serial number
01
Airframe hours
380
Engine
Lycoming O-360-A4A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Donald K. Eye
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 16, 2000 · 10 hours before
Departed
54M · Collierville, TN

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
57
Injuries
None
Medical
Class 1, Valid Medical--w/ waivers/lim
Last flight review
November 16, 2000
Seat
Rear
Flight hours
16,400 total · 380 in this make and model · 10,500 as pilot in command · 79 in the last 90 days · 62 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 37 °F
Altimeter
30.20 inHg
Observed at
MEM, 19 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.