LAX90DUG10

NTSB accident investigation · ELY Thorp T-18 · Claremont, CA · September 25, 1990

Accident · FatalFinal report
Date
September 24, 1990, 17:38 local (Sep 25, 1990, 00:38 UTC)
Place
Claremont, CA
Injuries
2 fatal
Damage
Substantial damage
Phase of flight
Unknown
Aircraft
N9JEELY Thorp T-18
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 1993
Report
Approved by Office Director
FAA report
19900924042199A
Case key
26539

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

A loss of control for undetermined reason(s).

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 control - in flightUnknown
Reason for occurrence undeterminedCause
In flight collision with terrain/waterUnknown

Analysis

Ground witnesses observed the aircraft in a spin, and then collide with the terrain. They did not hear the engine or unusual noises. Examination of the aircraft structure, flight controls, and engine revealed no evidence of a preimpact mechanical difficulty.

Aircraft

Registration
N9JE
Reported as
ELY Thorp T-18
Category
Airplane, amateur-built
Serial number
892
Airframe hours
221
Engine
Lycoming O-320-E2D, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
James E. Duval
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · January 1, 1990 · 11 hours before
Departed
POC · La Verne, CA

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
35
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
362 total · 320 in this make and model · 313 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 7 knots
Visibility
7 statute miles
Lowest ceiling
None
Altimeter
29.00 inHg
Observed at
POC, 5 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.