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
January 21, 1989 · Cessna 172RG · N9439B
Larimore, ND
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 21, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Larimore, ND
Aircraft
Cessna 172RG
Tail Number
N9439B
Operator
University of North Dakota
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN89LA066
THE CFI SAID THE STUDENT PLT WAS AT THE CONTROLS & WAS MAKING A TOUCH-&-GO LANDING ON RWY 12, WHICH WAS 2800 X 50 FT. THE WIND WAS FROM THE SOUTH AT 10 KTS. THE TRAINEE LANDED LONG, & BY THE TIME THE ACFT WAS RECONFIGURED FOR TAKEOFF, ONLY ABOUT 800 FT OF RWY WAS REMAINING. THE CFI THOUGHT THE TRAINEE WOULD STOP & TAXI BACK FOR TAKEOFF; HOWEVER, THE TRAINEE ADVANCED THE THROTTLE FOR TAKEOFF. AT THAT TIME, THE CFI TOOK THE CONTROLS, CLOSED THE THROTTLE & ATTEMPTED TO STOP. THE ACFT SLID TO THE LEFT ON THE PACKED SNOW & ICE COVERED RWY, COLLIDED WITH A SNOW BANK BESIDE THE RWY & NOSED OVER.
NTSB Probable Cause
INADEQUATE SUPERVISION BY THE FLIGHT INSTRUCTOR. FACTORS RELATED TO THE ACCIDENT WERE: FAILURE OF THE STUDENT PILOT TO ATTAIN A PROPER TOUCHDOWN POINT, HIS DELAY IN CONFIGURING THE AIRCRAFT & EXECUTING THE GO-AROUND, ICY/SNOWY RUNWAY CONDITIONS, AND THE SNOWBANK.
Full Narrative
THE CFI SAID THE STUDENT PLT WAS AT THE CONTROLS & WAS MAKING A TOUCH-&-GO LANDING ON RWY 12, WHICH WAS 2800 X 50 FT. THE WIND WAS FROM THE SOUTH AT 10 KTS. THE TRAINEE LANDED LONG, & BY THE TIME THE ACFT WAS RECONFIGURED FOR TAKEOFF, ONLY ABOUT 800 FT OF RWY WAS REMAINING. THE CFI THOUGHT THE TRAINEE WOULD STOP & TAXI BACK FOR TAKEOFF; HOWEVER, THE TRAINEE ADVANCED THE THROTTLE FOR TAKEOFF. AT THAT TIME, THE CFI TOOK THE CONTROLS, CLOSED THE THROTTLE & ATTEMPTED TO STOP. THE ACFT SLID TO THE LEFT ON THE PACKED SNOW & ICE COVERED RWY, COLLIDED WITH A SNOW BANK BESIDE THE RWY & NOSED OVER.
Flight
Event TypeAccident
Event Time09:50 CST
Nearest AirportLARIMORE (0nm N)
Runway12
Runway Length2800 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172RG
Tail NumberN9439B
Aircraft CategoryAir
DamageSubstantial
OperatorUniversity of North Dakota
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-F1A6 · Reciprocating · 180
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 21 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 10 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point25 C / 0 C
Altimeter29.00 inHg
Weather SourcePILO