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
March 10, 1991 · Cessna 180K · N66036
Amos Lakes, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 10, 1991
Injury Outcomes
No injuries (2 uninjured)
Location
Amos Lakes, AK
Aircraft
Cessna 180K
Tail Number
N66036
Operator
Carroll K Moon
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC91LA035
THE PILOT STATED THAT, DURING THE TAKEOFF ON THE FROZEN LAKE, HE ENCOUNTERED VERY ROUGH SURFACE CONDITIONS WHICH DID NOT ALLOW THE AIRPLANE TO REACH LIFTOFF SPEED. DURING THE ABORTED TAKEOFF, THE PILOT ENCOUNTERED AN AREA OF VERY SLICK SNOW-COVERED ICE. THE AIRPLANE WENT STRAIGHT AHEAD INTO THE TREES BEFORE COMING TO A STOP.
NTSB Probable Cause
THE PILOT'S SELECTION OF TERRAIN THAT WAS ROUGH, SNOW-COVERED AND ICY FOR TAKEOFF.
Full Narrative
THE PILOT STATED THAT, DURING THE TAKEOFF ON THE FROZEN LAKE, HE ENCOUNTERED VERY ROUGH SURFACE CONDITIONS WHICH DID NOT ALLOW THE AIRPLANE TO REACH LIFTOFF SPEED. DURING THE ABORTED TAKEOFF, THE PILOT ENCOUNTERED AN AREA OF VERY SLICK SNOW-COVERED ICE. THE AIRPLANE WENT STRAIGHT AHEAD INTO THE TREES BEFORE COMING TO A STOP.
Flight
Event TypeAccident
Event Time12:30 AKST
Nearest Airport0nm
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 180K
Tail NumberN66036
Aircraft CategoryAir
DamageSubstantial
OperatorCarroll K Moon
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470-VC · Reciprocating · 230
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 55 · First Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point19 C / 0 C
Altimeter0
Weather SourcePILO