NYC97LA162

NTSB accident investigation · Simpson Avid Flyer · Westerly, RI · August 10, 1997

Accident · Minor injuriesLimited investigationFinal report
Date
August 10, 1997, 11:30 local (15:30 UTC)
Place
Westerly, RI
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N7156XSimpson Avid Flyer
Weather
Visual (VMC) · Day
Status
Completed · report September 28, 1999
Report
Approved by Office Director
FAA report
19970810046959A
Case key
39417

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 inadequate fuel consumption calculations, which resulted in fuel exhaustion.

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) - nonmechanicalApproach
Fluid,fuel - exhaustionCause
Fuel consumption calculations - inadequatePilot in commandCause
Forced landingEmergency descent/landing
Main gear collapsedEmergency landing
Terrain condition - roadway/highway

Analysis

The pilot departed on a cross country flight in a homebuilt airplane and executed three full stop landings at different airports. The airplane was not equipped with fuel gauges. The pilot estimated the airplane's fuel endurance at 2.5 hours. After 1.8 hours of flight, the engine lost power and the pilot performed a forced landing to a road. The pilot reported that he did not account for the additional landings and mismanaged his fuel supply.

Factual narrative

On August 10, 1997, about 1130 eastern daylight time, a homebuilt Avid Flyer, N7156X, was substantially damaged during a forced landing to a road near Westerly, Rhode Island. The certificated private pilot and passenger received minor injuries. Visual meteorological conditions prevailed for the flight that departed the Groton New London Airport, (GON) Groton Connecticut, destined for Westerly State Airport (WST), Westerly, Rhode Island. No flight plan was filed for the personal flight conducted under 14 CFR Part 91.

During a telephone interview, the pilot stated that the airplane was built over a period of 2 1/2 years, and that the airplane was not equipped with fuel gages. The fuel tanks were constructed of fiberglass and contained a 5 gallon mark inside the tanks. According to the pilot/owner, the engine burned approximately 3.5 gallons of fuel per hour in cruise flight at 80 miles per hour. Prior to the first departure from WST, the pilot determined he had 8 gallons of fuel, and approximated 2.5 hours of fuel endurance.

The pilot stated he performed 3 full stop landings at different airports while en route to WST. While on final approach at WST, the pilot advanced the throttle to the forward position, and the engine lost power. The pilot determined he would not make the runway, retracted the flaps, and maneuvered the airplane through trees for landing on a road. The right main landing gear separated at ground contact and the airplane came to rest approximately 80 feet past the point of touchdown.

Examination by an FAA Inspector revealed that the fuel system was intact and that there was no evidence of fuel or fuel spillage at the scene.

The pilot reported to the Inspector that the flight was 1.8 hours in duration. He said he did not account for the additional landings, mismanaged his fuel, and exhausted his fuel supply.

The pilot reported 294 hours of flight experience and did not report any mechanical malfunctions with the airplane.

Aircraft

Registration
N7156X
Reported as
Simpson Avid Flyer
Category
Airplane, amateur-built
Serial number
588
Airframe hours
81
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Maurice J Tate
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · August 1, 1997 · 4 hours before
Departed
GON · Groton, CT
Destination
WST · RI
Airport
WST · Westerly St. Airport, runway 25, 4,010 × 100 ft, asphalt

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
39
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
294 total · 81 in this make and model · 241 as pilot in command · 20 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 8 knots
Visibility
5 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
GON, 10 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.