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
April 23, 1992 · Cessna 152 · N59ND
Branson, MO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 23, 1992
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury), 2 uninjured
Location
Branson, MO
Aircraft
Cessna 152
Tail Number
N59ND
Operator
University of North Dakota
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
CHI92LA131
THIS AIRCRAFT WAS IN THE LEFT WING POSITION OF A FLIGHT OF FOUR AIRCRAFT WHICH WERE IN CRUISE FLIGHT IN A LOOSE DIAMOND FORMATION. ALL OF THE AIRCRAFT WERE OPERATED BY THE UNIVERSITY OF NORTH DAKOTA, AND WERE ENROUTE TO A COLLEGIATE FLYING COMPETITION. THE AIRCRAFT DRIFTED INTO THE LEAD AIRCRAFT. THE RIGHT SIDE OF THE ENGINE COWLING HIT THE LEFT MAIN LANDING GEAR OF THE LEAD AIRCRAFT. NEITHER AIRCRAFT COULD SUSTAIN FLIGHT AFTER THE COLLISION. BOTH AIRCRAFT MADE FORCED LANDINGS. FORMATION FLYING IS NOT A PART OF THE UNIVERSITY OF NORTH DAKOTA FLIGHT SYLLABUS.
NTSB Probable Cause
INADEQUATE INFLIGHT PLANNING/DECISION BY THE PILOT OF THE OTHER AIRCRAFT IN FAILING TO MAINTAIN PROPER SEPARATION FROM THIS AIRCRAFT.
Full Narrative
THIS AIRCRAFT WAS IN THE LEFT WING POSITION OF A FLIGHT OF FOUR AIRCRAFT WHICH WERE IN CRUISE FLIGHT IN A LOOSE DIAMOND FORMATION. ALL OF THE AIRCRAFT WERE OPERATED BY THE UNIVERSITY OF NORTH DAKOTA, AND WERE ENROUTE TO A COLLEGIATE FLYING COMPETITION. THE AIRCRAFT DRIFTED INTO THE LEAD AIRCRAFT. THE RIGHT SIDE OF THE ENGINE COWLING HIT THE LEFT MAIN LANDING GEAR OF THE LEAD AIRCRAFT. NEITHER AIRCRAFT COULD SUSTAIN FLIGHT AFTER THE COLLISION. BOTH AIRCRAFT MADE FORCED LANDINGS. FORMATION FLYING IS NOT A PART OF THE UNIVERSITY OF NORTH DAKOTA FLIGHT SYLLABUS.
Flight
Event TypeAccident
Event Time12:10 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 152
Tail NumberN59ND
Aircraft CategoryAir
DamageSubstantial
OperatorUniversity of North Dakota
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-N2C · Reciprocating · 108 | Lycoming · O-235-N2C · Reciprocating · 108
Seats2
People & Injuries
Injury Summary2 injuries (1 serious injury, 1 minor injury), 2 uninjured
Fatal0
Serious1
Minor1
Uninjured2
Total4
Crew 1Age 22 · Second Class
Crew 2Age 22 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind210° @ 19 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point48
Altimeter29.00 inHg
Observation Time17:50
Weather SourceWFAC