DEN85LTE05

NTSB accident investigation · Gordon Thorpe T-18 · Alamosa, CO · July 26, 1985

Accident · Minor injuriesFinal report
Date
July 25, 1985, 18:15 local (Jul 26, 1985, 00:15 UTC)
Place
Alamosa, CO
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N633GGGordon Thorpe T-18
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850725033769A
Case key
16775

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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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
PerformedPilot in command
Weather condition - high density altitudeFactor
Airspeed - misjudgedPilot in commandFactor
Lack of total experience in type of aircraftPilot in commandFactor
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - uncontrolled

Analysis

The plt of the amateur built acft was on a flt to ashkosh, WI with an en route stop at pueblo, CO. Due to wx in the pueblo area, he diverted to Alamosa, CO. On his 1st apch to land on rwy 20, he made a go-around. On his 2nd apch, the acft landed long & at high speed. Subsequently, the acft veered to the left, went off the rwy & was damaged. The plt reported that he was relatively inexperience at flying tailwheel equipped acft, was unfamiliar with high alt arpt landings & had 'just lost it.'

Aircraft

Registration
N633GG
Reported as
Gordon Thorpe T-18 (THORPE T-1)
Category
Airplane, amateur-built
Serial number
1098
Airframe hours
495
Engine
Lycoming O-320-E2A, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gus G. Gordon
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · July 12, 1985 · 495 hours before
Departed
PGA · Page, AZ
Destination
OSH · Oshkosh, WI
Flight plan
VFR
Airport
ALS · Alamosa Muni/Bergman, runway 20, 8,499 × 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
54
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
252 total · 50 in this make and model · 177 as pilot in command · 50 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 12 knots
Visibility
30 statute miles
Lowest ceiling
10,000 ft broken
Temperature
64 °F
Altimeter
30.00 inHg
Observed at
DEN, 137 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.