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
December 27, 1990 · Cessna 152 · N5133B
Logan, UT
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 27, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Logan, UT
Aircraft
Cessna 152
Tail Number
N5133B
Operator
Great Western Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA037
THE CERTIFIED FLIGHT INSTRUCTOR ATTEMPTED TO CORRECT HIS STUDENT'S LEFT DRIFT FROM THE RUNWAY CENTERLINE BY VERBAL CAUTION. WHEN THAT FAILED, HE ATTEMPTED TO TAKE CONTROL OF THE AIRCRAFT, BUT WAS UNABLE TO OVERPOWER HIS STUDENT'S LEFT RUDDER INPUT. THE AIRCRAFT DRIFTED OFF THE LEFT SIDE OF THE RUNWAY AND NOSED OVER IN A SNOWBANK.
NTSB Probable Cause
THE CERTIFIED FLIGHT INSTRUCTOR'S INABILITY TO REGAIN DIRECTIONAL CONTROL AFTER IT WAS LOST BY HIS DUAL STUDENT ON AN ICY, SNOWY RUNWAY.
Full Narrative
THE CERTIFIED FLIGHT INSTRUCTOR ATTEMPTED TO CORRECT HIS STUDENT'S LEFT DRIFT FROM THE RUNWAY CENTERLINE BY VERBAL CAUTION. WHEN THAT FAILED, HE ATTEMPTED TO TAKE CONTROL OF THE AIRCRAFT, BUT WAS UNABLE TO OVERPOWER HIS STUDENT'S LEFT RUDDER INPUT. THE AIRCRAFT DRIFTED OFF THE LEFT SIDE OF THE RUNWAY AND NOSED OVER IN A SNOWBANK.
Flight
Event TypeAccident
Event Time15:50 MST
Nearest AirportLOGAN (0nm N)
Runway35
Runway Length5939 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 152
Tail NumberN5133B
Aircraft CategoryAir
DamageSubstantial
OperatorGreat Western Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 110
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 35 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind210° @ 3 kt
Visibility5 sm
CeilingBroken clouds 9000 ft
Temperature / Dew Point9 C / 5 C
Altimeter0
Observation Time23:10
Weather SourceWFAC