ATL91LA078

NTSB accident investigation · Lewis Challenger II · Thomaston, GA · April 8, 1991

Accident · FatalLimited investigationFinal report
Date
April 8, 1991, 17:50 local (21:50 UTC)
Place
Thomaston, GA
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N283ELLewis Challenger II
Weather
Visual (VMC) · Day
Status
Completed · report March 24, 1993
Report
Approved by Office Director
FAA report
19910408009339A
Case key
8391

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 properly maintain the airplane in accordance with prescribed procedures which resulted in fuel contamination, fouled spark plugs, and a loss of engine power. The pilot also failed to follow normal emergency procedures for the loss of engine power after liftoff and stalled the airplane.

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) - nonmechanicalTakeoff - initial climb
Ignition system,spark plug - fouledCause
Fluid,fuel - contaminationCause
Aircraft preflight - inadequatePilot in commandCause
Maintenance,inspection - not performedPilot in commandCause
Single engine aircraft - other
Forced landingDescent - emergency
Emergency procedure - not followedPilot in commandCause
Loss of control - in flightDescent - emergency
Airspeed - not maintainedPilot in command
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

N283EL was the third airplane of a flight of three. The other airplanes climbed out without incident, but as N283EL started its climb, reportedly the engine lost power. Witnesses reported that the pilot appeared to have started a left turn and crashed 180 degrees from the takeoff heading on the parallel taxiway. During the wreckage examination water was found in the carburetor bowl and the spark plugs were fouled. The pilot had previously reported a rough running engine, but later reported that the problem had been corrected. According to the operational limitation for the airplane, a conditional inspection is required annually. There was no record of a completed conditional inspection since the airplane was certificated in 1988. Sufficient runway was available for a forced landing.

Aircraft

Registration
N283EL
Reported as
Lewis Challenger II (CHALLENGER)
Category
Airplane, amateur-built
Serial number
0283
Airframe hours
186
Engine
Rotax 503 DC, 52 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Lewis, Eugene G.
Registered owner
Lewis, Eugene G.
Airworthiness certificate
Special, Experimental (Special)
Destination
LAL · Lakeland, FL
Airport
RGD · Reginald Grant Memorial, runway 21, 3,000 × 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
57
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Toxicology
Performed
Flight hours
2,650 total

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 8 knots
Visibility
12 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point -0 °F
Altimeter
30.00 inHg
Observed at
MCN, 35 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.