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
October 28, 1984 · Cessna 152 · N49475
Lipan, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
October 28, 1984
Injury Outcomes
2 injuries (2 minor injuries)
Location
Lipan, TX
Aircraft
Cessna 152
Tail Number
N49475
Operator
Aviation Ground School
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
FTW85LA027
ACFT EXPERIENCED A PARTIAL ENG FAILURE IN FLIGHT. DURING THE FORCED LANDING, THE NOSE GEAR DUG INTO TERRAIN AND THE ACFT FLIPPED OVER. INVESTIGATION REVEALED THAT THE NO. 3 CYL BARREL WAS CRACKED ABOUT 90% AROUND THE CIRCUMFERENCE. METALLURGICAL EXAMINATION REVEALED THAT CRACK HAD INITIATED IN FATIGUE DUE TO IMPROPER MACHINING OF THE BARREL TO COOLING FIN RADIUS DURING MANUFACTURE. IN ADDITION, CORROSION PITTING IN THE AREA OF THE FATIGUE ORIGIN AGGRAVATED THE ORIGINAL DEFECT.
Full Narrative
ACFT EXPERIENCED A PARTIAL ENG FAILURE IN FLIGHT. DURING THE FORCED LANDING, THE NOSE GEAR DUG INTO TERRAIN AND THE ACFT FLIPPED OVER. INVESTIGATION REVEALED THAT THE NO. 3 CYL BARREL WAS CRACKED ABOUT 90% AROUND THE CIRCUMFERENCE. METALLURGICAL EXAMINATION REVEALED THAT CRACK HAD INITIATED IN FATIGUE DUE TO IMPROPER MACHINING OF THE BARREL TO COOLING FIN RADIUS DURING MANUFACTURE. IN ADDITION, CORROSION PITTING IN THE AREA OF THE FATIGUE ORIGIN AGGRAVATED THE ORIGINAL DEFECT.
Flight
Event TypeAccident
Event Time17:15 CST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 152
Tail NumberN49475
Aircraft CategoryAir
DamageSubstantial
OperatorAviation Ground School
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 110
Seats2
People & Injuries
Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 24 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 8 kt
Visibility8 sm
CeilingNone
Temperature / Dew Point55
Altimeter30.00 inHg
Observation Time23:15
Weather SourceWFAC