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
November 15, 2020 · Zlin Aviation Savage Cub-S · N9111
Francis, OK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
November 15, 2020
Injury Outcomes
No injuries (1 uninjured)
Location
Francis, OK
Aircraft
Zlin Aviation Savage Cub-S (2015)
Tail Number
N9111
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN21LA074
The private pilot reported that he was landing on a sand bar near a river, where he had previously landed several times before. During the landing roll after traveling about 100 ft, the airplane encountered soft sand, nosed over, and came to rest inverted. The airplane sustained substantial damage to both wings and the empennage. The pilot reported there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s selection of unsuitable terrain for the landing, which resulted in a nose over when the airplane encountered soft sand during the landing roll.
Full Narrative
The private pilot reported that he was landing on a sand bar near a river, where he had previously landed several times before. During the landing roll after traveling about 100 ft, the airplane encountered soft sand, nosed over, and came to rest inverted. The airplane sustained substantial damage to both wings and the empennage. The pilot reported there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time12:00 CST
Nearest AirportSand Bar - Canadian River (0nm N)
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftZlin Aviation Savage Cub-S
Tail NumberN9111
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental Aerospace Technolo · Titan X340 · Reciprocating · 180
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 54 · Basc · None
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 11 kt, gusting 16 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point59 / 18 C
Altimeter30.31 inHg
Observation Time11:55
Weather SourceWFAC