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
July 11, 1985 · Grumman AA5B · N4520B
Sonora, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 11, 1985
Injury Outcomes
No injuries (2 uninjured)
Location
Sonora, TX
Aircraft
Grumman AA5B
Tail Number
N4520B
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW85LA284
WHILE LANDING AT AN UNFAMILIAR STRIP, THE PLT OBSERVED A ROUGH SURFACE AT THE APCH END, AND LANDED ONE HALFWAY DOWN THE DOWN-SLOPING 2300 FT RWY. HE TRIED TO GO AROUND, BUT COULD NOT ACCELERATE ENOUGH, AND THE ACFT ROLLED THRU 2 FENCES, TREES, THEN STOPPED AGAINST ANOTHER FENCE. THE DENSITY ALT WAS 5400 FT.
Full Narrative
WHILE LANDING AT AN UNFAMILIAR STRIP, THE PLT OBSERVED A ROUGH SURFACE AT THE APCH END, AND LANDED ONE HALFWAY DOWN THE DOWN-SLOPING 2300 FT RWY. HE TRIED TO GO AROUND, BUT COULD NOT ACCELERATE ENOUGH, AND THE ACFT ROLLED THRU 2 FENCES, TREES, THEN STOPPED AGAINST ANOTHER FENCE. THE DENSITY ALT WAS 5400 FT.
Flight
Event TypeAccident
Event Time11:00 CDT
Nearest AirportTexas A&M Exp. Research (0nm N)
Runway16
Runway Length2065 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman AA5B
Tail NumberN4520B
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A4K · Reciprocating · 180
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 32 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Observation Time10:48
Weather SourcePILO