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

April 10, 2026 · Marshall Daniel R L-21 · N453HC

Cody, WY

Overview

Report Status
Probable Cause
Event Type
Accident
Date
April 10, 2026
Injury Outcomes
No injuries (2 uninjured)
Location
Cody, WY
Aircraft
Marshall Daniel R L-21 (2005)
Tail Number
N453HC
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR26LA156

The pilot of the tailwheel-equipped airplane reported that he made several passes over his destination airport to assess the landing area and then completed one successful landing. During a second landing the pilot lost control of the airplane, which nosed over and came to rest inverted. The airplane sustained substantial damage to the rudder assembly and both wing struts. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

NTSB Probable Cause

The pilot's failure to maintain control of the airplane during the landing rollout, which resulted in a nose-over.

Full Narrative

The pilot of the tailwheel-equipped airplane reported that he made several passes over his destination airport to assess the landing area and then completed one successful landing. During a second landing the pilot lost control of the airplane, which nosed over and came to rest inverted. The airplane sustained substantial damage to the rudder assembly and both wing struts. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Flight

Event TypeAccident
Event Time08:55 MDT
Nearest AirportSheep Mountain (0nm N)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMarshall Daniel R L-21
Tail NumberN453HC
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360 SERIES · Reciprocating · 230
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 66 · Second Class · None
Crew 2Age 59 · Basc · None

Conditions

ConditionsVMC
LightDaylight
Wind220° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point46 F / 25 F
Altimeter30.11 inHg
Observation Time09:00
Weather SourceWFAC

Appendix: Source Data