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 9, 1993 · Maule M-6-235 · N56509
Englewood, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 9, 1993
Injury Outcomes
No injuries (2 uninjured)
Location
Englewood, CO
Aircraft
Maule M-6-235
Tail Number
N56509
Operator
Meine William F
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN93LA040
PRIOR TO THE FIRST LANDING ON RUNWAY 17L, ATIS REPORTED THE WIND TO BE FROM 180 DEGREES AT SEVEN KNOTS. PRIOR TO HIS SECOND LANDING, THE CONTROL TOWER TOLD THE PILOT THE WIND WAS FROM 050 DEGREES AT SIX KNOTS. THEY REQUESTED THAT HIS THIRD LANDING BE MADE TO A FULL STOP. THE PILOT SAID THAT DURING THE THIRD LANDING ROLLOUT, THE RIGHT WING LIFTED AND HE CORRECTED WITH FULL RIGHT AILERON AND FULL LEFT RUDDER WITH BRAKE, BUT COULD NOT MAINTAIN DIRECTIONAL CONTROL. THE LEFT WING CONTACTED THE RUNWAY AND THE LEFT MAIN LANDING GEAR COLLAPSED. THE PILOT ESTIMATED THE WINDS WERE THEN FROM THE SOUTHWEST AT 15 KNOTS. THE OFFICIAL WIND RECORDED ONE MINUTE AFTER THE ACCIDENT WAS 220 DEGREES AT 15 KNOTS.
NTSB Probable Cause
THE PILOT'S IMPROPER COMPENSATION FOR WIND CONDITIONS AND HIS FAILURE TO MAINTAIN DIRECTIONAL CONTROL. FACTORS WERE: A CROSSWIND AND TAILWIND COMPONENT.
Full Narrative
PRIOR TO THE FIRST LANDING ON RUNWAY 17L, ATIS REPORTED THE WIND TO BE FROM 180 DEGREES AT SEVEN KNOTS. PRIOR TO HIS SECOND LANDING, THE CONTROL TOWER TOLD THE PILOT THE WIND WAS FROM 050 DEGREES AT SIX KNOTS. THEY REQUESTED THAT HIS THIRD LANDING BE MADE TO A FULL STOP. THE PILOT SAID THAT DURING THE THIRD LANDING ROLLOUT, THE RIGHT WING LIFTED AND HE CORRECTED WITH FULL RIGHT AILERON AND FULL LEFT RUDDER WITH BRAKE, BUT COULD NOT MAINTAIN DIRECTIONAL CONTROL. THE LEFT WING CONTACTED THE RUNWAY AND THE LEFT MAIN LANDING GEAR COLLAPSED. THE PILOT ESTIMATED THE WINDS WERE THEN FROM THE SOUTHWEST AT 15 KNOTS. THE OFFICIAL WIND RECORDED ONE MINUTE AFTER THE ACCIDENT WAS 220 DEGREES AT 15 KNOTS.
Flight
Event TypeAccident
Event Time08:34 MDT
Nearest AirportCentennial (0nm N)
Runway17
Runway Length1000 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMaule M-6-235
Tail NumberN56509
Aircraft CategoryAir
DamageSubstantial
OperatorMeine William F
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-540-J1A5D · Reciprocating · 235
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 37 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind220° @ 15 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point48 / 21 C
Altimeter29.00 inHg
Weather SourceWIT