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
March 19, 1984 · Piper PA-12-115 · N4378M
Riverton, WY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
March 19, 1984
Injury Outcomes
No injuries (1 uninjured)
Location
Riverton, WY
Aircraft
Piper PA-12-115
Tail Number
N4378M
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN84LA111
THE PLT STATED THAT A CONVAIR 580 HAD LANDED BEFORE HIM. THE PLT FLEW A NORMAL GLIDE SLOPE & PLANNED TO LAND ON THE APPROACH END OF THE RWY. ON SHORT FINAL AT 50 FT AGL, THE ACFT SUDDENLY BANKED 'OVER 90 DEGREES' TO THE LEFT OUT OF CONTROL. THE ACFT THEN HIT THE GROUND 50 YDS SHORT OF THE RWY IN A LEFT WING LOW ATTITUDE.
Full Narrative
THE PLT STATED THAT A CONVAIR 580 HAD LANDED BEFORE HIM. THE PLT FLEW A NORMAL GLIDE SLOPE & PLANNED TO LAND ON THE APPROACH END OF THE RWY. ON SHORT FINAL AT 50 FT AGL, THE ACFT SUDDENLY BANKED 'OVER 90 DEGREES' TO THE LEFT OUT OF CONTROL. THE ACFT THEN HIT THE GROUND 50 YDS SHORT OF THE RWY IN A LEFT WING LOW ATTITUDE.
Flight
Event TypeAccident
Event Time13:15 MST
Nearest AirportRiverton Regional (0nm N)
Runway10
Runway Length8200 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-12-115
Tail NumberN4378M
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-C · Reciprocating · 100
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 37 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind100° @ 10 kt
Visibility100 sm
CeilingNone
Temperature / Dew Point46 / 39 C
Altimeter30.00 inHg
Weather SourcePILO