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
September 12, 1986 · Cessna T310R · N6171X
Louisville, KY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 12, 1986
Injury Outcomes
No injuries (2 uninjured)
Location
Louisville, KY
Aircraft
Cessna T310R
Tail Number
N6171X
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL86LA255
THE PLT WAS ON A VFR CROSS COUNTRY FLT WHEN THE LEFT ENG BEGAN TO RUN ROUGH. HE DIVERTED TO BOWMAN FIELD AND MADE A PRECAUTIONARY LANDING WHERE HE LEFT THE AIRCRAFT WITH A FBO TO BE REPAIRED. EXAMINATION SHOWED THAT THE OVERBOARD DUMP PART OF THE EXHAUST SYSTEM FOR THE NUMBER ONE ENG WAS MISSING. THERE WAS SUBSTANTIAL DAMAGE TO THE AREA INSIDE THE COWLING AND TO THE BOTTOM OF THE WING.
Full Narrative
THE PLT WAS ON A VFR CROSS COUNTRY FLT WHEN THE LEFT ENG BEGAN TO RUN ROUGH. HE DIVERTED TO BOWMAN FIELD AND MADE A PRECAUTIONARY LANDING WHERE HE LEFT THE AIRCRAFT WITH A FBO TO BE REPAIRED. EXAMINATION SHOWED THAT THE OVERBOARD DUMP PART OF THE EXHAUST SYSTEM FOR THE NUMBER ONE ENG WAS MISSING. THERE WAS SUBSTANTIAL DAMAGE TO THE AREA INSIDE THE COWLING AND TO THE BOTTOM OF THE WING.
Flight
Event TypeAccident
Event Time11:00 CDT
Nearest AirportBowman Field (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireIflt
Aircraft ExplosionNo
Aircraft
AircraftCessna T310R
Tail NumberN6171X
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-B · Reciprocating · 285
Seats5
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 64 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 10 kt
Visibility7 sm
CeilingOvercast 3000 ft
Temperature / Dew Point68 F / 55
Altimeter30.00 inHg
Observation Time16:47
Weather SourceWFAC