Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

July 26, 1985 · Gordon Thorpe T-18 Thorpe T-1 · N633GG

Alamosa, CO

Overview

Report Status
Preliminary report
Event Type
Accident
Date
July 26, 1985
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Alamosa, CO
Aircraft
Gordon Thorpe T-18 Thorpe T-1
Tail Number
N633GG
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DEN85LTE05

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.'

Full Narrative

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.'

Flight

Event TypeAccident
Event Time18:15 MDT
Nearest AirportAlamosa Muni/Bergman (0nm N)
Runway20
Runway Length8499 ft
Runway Width100 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGordon Thorpe T-18 Thorpe T-1
Tail NumberN633GG
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2A · Reciprocating · 160
Seats2

People & Injuries

Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 54 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind230° @ 12 kt
Visibility30 sm
CeilingBroken clouds 10000 ft
Temperature / Dew Point64 F / 0 C
Altimeter30.00 inHg
Observation Time23:50
Weather SourceWFAC

Appendix: Source Data