Overall Trends
Total, fatal, and serious accidents in the selected range.
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
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured 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…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
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 manufacturersAirports
More airportsOperators
More operatorsAbout
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
June 17, 1987 · Concept 70 · N23405
Durango, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 17, 1987
Injury Outcomes
No injuries (1 uninjured)
Location
Durango, CO
Aircraft
Concept 70
Tail Number
N23405
Operator
Donald E Howard
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN87FA153
THE PLT REPORTED THAT HE HAD BEEN FLYING FOR ONE HOUR AND HAD BEEN DOING ACROBATICS. HE HAD STARTED AN INSIDE LOOP AND DURING PULL UP, HE REPORTED INDICATING 5.5 G'S ON HIS NEW G METER. THE PLT REPORTED THAT BOTH WINGS LEFT THE ACFT AND HE JETTISONED THE CANOPY. HE BAILED OUT AND LANDED SAFELY IN TREES. THE ACFT FUSELAGE IMPACTED IN A FIELD AND WAS DESTROYED. THE WINGS AND OTHER WRECKAGE WERE SCATTERED OVER FARM LAND IN A ONE HALF MILE PATH.
Full Narrative
THE PLT REPORTED THAT HE HAD BEEN FLYING FOR ONE HOUR AND HAD BEEN DOING ACROBATICS. HE HAD STARTED AN INSIDE LOOP AND DURING PULL UP, HE REPORTED INDICATING 5.5 G'S ON HIS NEW G METER. THE PLT REPORTED THAT BOTH WINGS LEFT THE ACFT AND HE JETTISONED THE CANOPY. HE BAILED OUT AND LANDED SAFELY IN TREES. THE ACFT FUSELAGE IMPACTED IN A FIELD AND WAS DESTROYED. THE WINGS AND OTHER WRECKAGE WERE SCATTERED OVER FARM LAND IN A ONE HALF MILE PATH.
Flight
Event TypeAccident
Event Time17:00 MDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftConcept 70
Tail NumberN23405
Aircraft CategoryGli
DamageSubstantial
OperatorDonald E Howard
Operating RulePart 91
Engine TypeUnknown
Engine DetailsNone · NONE · Unknown
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 39 · None
Conditions
ConditionsVMC
LightDaylight
Wind240°
Visibility50 sm
CeilingNone
Temperature / Dew Point64 F / 0 C
Altimeter0
Weather SourceWIT