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
July 11, 1992 · Piper PA-22 · N9961D
Kugururak River, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 11, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Kugururak River, AK
Aircraft
Piper PA-22
Tail Number
N9961D
Operator
Jody R Sessom Dds
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC92LA105
THE PILOT OF THE TAILWHEEL EQUIPPED PIPER PA-22 LANDED ON AN UNIMPROVED AIRSTRIP IN REMOTE ALASKA. HE DETERMINED THAT THE RUNWAY HAD A CONSIDERABLE RUT OR BUMP ABOUT ONE THIRD TO HALF WAY DOWN THE STRIP. DURING TAKEOFF, AT APPROXIMATELY 50 MILES PER HOUR, THE RIGHT TIRE ENTERED THE RUT AND THE AIRPLANE SWERVED TO THE RIGHT, HEADED OFF THE RUNWAY. AFTER REMEDIAL ACTIONS PROVED INADEQUATE, THE PILOT ELECTED TO ABORT THE TAKEOFF. THE AIRPLANE NOSED OVER WHEN THE BRAKES WERE APPLIED.
NTSB Probable Cause
THE FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING TAKEOFF. FACTORS INCLUDE ROUGH/UNEVEN TERRAIN.
Full Narrative
THE PILOT OF THE TAILWHEEL EQUIPPED PIPER PA-22 LANDED ON AN UNIMPROVED AIRSTRIP IN REMOTE ALASKA. HE DETERMINED THAT THE RUNWAY HAD A CONSIDERABLE RUT OR BUMP ABOUT ONE THIRD TO HALF WAY DOWN THE STRIP. DURING TAKEOFF, AT APPROXIMATELY 50 MILES PER HOUR, THE RIGHT TIRE ENTERED THE RUT AND THE AIRPLANE SWERVED TO THE RIGHT, HEADED OFF THE RUNWAY. AFTER REMEDIAL ACTIONS PROVED INADEQUATE, THE PILOT ELECTED TO ABORT THE TAKEOFF. THE AIRPLANE NOSED OVER WHEN THE BRAKES WERE APPLIED.
Flight
Event TypeAccident
Event Time04:00 AKDT
Nearest Airport0nm
Runway0
Runway Length900 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-22
Tail NumberN9961D
Aircraft CategoryAir
DamageSubstantial
OperatorJody R Sessom Dds
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B · Reciprocating · 160
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 31 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility60 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO