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, 2012 · Piper PA-18-150 · N9488D
Skwentna, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 17, 2012
Injury Outcomes
No injuries (1 uninjured)
Location
Skwentna, AK
Aircraft
Piper PA-18-150
Tail Number
N9488D
Operator
Beck Joseph S
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC12CA053
The pilot landed the tailwheel-equipped airplane at a private airstrip. While taxiing to park, the right wheel dropped into a hidden, vegetation-covered, deep hole alongside the runway. The airplane then spun around, sustaining substantial damage to the empennage and left elevator. The pilot reported no preaccident mechanical problems with the airplane.
NTSB Probable Cause
Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
Full Narrative
The pilot landed the tailwheel-equipped airplane at a private airstrip. While taxiing to parking, the right wheel dropped into a hidden, vegetation covered, deep hole, alongside the runway. The airplane spun around, sustaining substantial damage to the empennage, and left elevator. The pilot reported no preaccident mechanical problems with the airplane.
Flight
Event TypeAccident
Event Time17:00 AKDT
Nearest AirportShell Lake Airstrip (0nm)
Runway15
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-18-150
Tail NumberN9488D
Aircraft CategoryAir
DamageSubstantial
OperatorBeck Joseph S
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 Series · Reciprocating · 150
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 68 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO