LAX95LA294

NTSB accident investigation · Thorp T18 · Sedona, AZ · August 14, 1995

Accident · No injuriesLimited investigationFinal report
Date
August 14, 1995, 11:50 local (18:50 UTC)
Place
Sedona, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8032QThorp T18
Weather
Visual (VMC) · Day
Status
Completed · report February 27, 1996
Report
Approved by Office Director
FAA report
19950814024069A
Case key
29187

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 loss of directional control in gusty tail wind conditions during the landing roll.

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 - on ground/waterLanding - roll
Weather condition - high density altitude
Weather condition - tailwindFactor
Directional control - not maintainedPilot in commandCause
Dragged wing,rotor,pod,float or tail/skidLanding - roll

Analysis

The pilot landed on runway 03 with a tail wind from 170 to 200 degrees and lost directional control during the landing roll. The winds were 7 knots, gusting to 14 knots, with a density altitude of 7,800 feet. There was no reported mechanical problems with the aircraft.

Factual narrative

On August 14, 1995, at 1150 hours mountain standard time, an experimental Thorp T18, N8032Q, ground looped during a landing on runway 03 at Sedona, Arizona. Visual meteorological conditions existed at the time for the personal cross-country flight that originated from Santa Fe, New Mexico. The aircraft sustained substantial damage to the left wing and the two occupants were not injured. The pilot reportedly filed a VFR flight plan before departing Santa Fe and there is no record of him receiving a weather briefing.

The winds at Sedona at the time were reported to be from 170 to 200 degrees at 7 knots, gusting to 14 knots.

The pilot did not file an accident report, nor did he report any mechanical problems with the aircraft.

Aircraft

Registration
N8032Q
Reported as
Thorp T18
Category
Airplane, amateur-built
Serial number
126
Engine
Lycoming O-320, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Charles R. Patton
Airworthiness certificate
Special, Experimental (Special)
Departed
SAF · Santa Fe, NM
Destination
SEZ
Flight plan
VFR
Airport
SEZ · Sedona, runway 3, 5,131 × 75 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
52
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
400 total

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 7 knots, gusting 14
Visibility
65 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 63 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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