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 29, 1991 · Lake LA-250 · N1404X
Sisters, OR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 29, 1991
Injury Outcomes
4 injuries (3 fatalities, 1 serious injury)
Location
Sisters, OR
Aircraft
Lake LA-250
Tail Number
N1404X
Operator
Stuart W Moore
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA91FA255
WITNESSES RPRTD THE PLTS HAD DIFFICULTY LOCATING THE ARPT. AFTER LNDG, THEY ELECTED TO TAKEOFF ON RWY 2, TOWARD TREES & RISING TRRN. ABT 17 MI EAST AT REDMAN, OR, THE 1215 WX WAS, IN PART: SKY CLEAR, VIS 10 MI, WIND FM 030 DEG AT 4 KTS. AT SISTERS, OR, THE DENSITY ALT WAS ABT 5500 FT. WITNESSES NOTED THAT DRG TAKEOFF, THE ACFT WAS TAXIED ONTO THE APCH END OF THE RWY, THEN TAXIED DOWN THE RWY ABT 100 FT BEFORE STARTING A ROLLING TAKEOFF. THERE WERE INDCNS THAT THE ACFT WOULD NOT CLR A RIDGE BEYOND THE DEP END OF THE RWY. THE ACFT ENTERED A STEEP LEFT TURN. SUBSEQUENTLY, IT STRUCK TREES ABT 50 FT AGL & CRASHED. WITNESSES RPRTD THE ENG WAS RUNNING AT HI POWER UNTIL IMPACT. ALSO, WITNESSES RPRTD THAT PILOTS, WHO WERE FAMILIAR WITH THE ARPT, FAVORED RWY 20 DRG CALM OR LIGHT WINDS.
NTSB Probable Cause
IMPROPER PLANNING/DECISION BY THE PILOT(S), AND FAILURE TO ATTAIN SUFFICIENT ALTITUDE TO REMAIN CLEAR OF OBSTRUCTIONS. FACTORS RELATED TO THE ACCIDENT WERE: THE PILOT(S) FAILURE TO USE ALL AVAILABLE RUNWAY, HIGH DENSITY ALTITUDE, RISING TERRAIN AND TREES BEYOND THE DEPARTURE END OF THE RUNWAY, AND LACK OF FAMILIARITY WITH THE GEOGRAPHICAL AREA.
Full Narrative
WITNESSES RPRTD THE PLTS HAD DIFFICULTY LOCATING THE ARPT. AFTER LNDG, THEY ELECTED TO TAKEOFF ON RWY 2, TOWARD TREES & RISING TRRN. ABT 17 MI EAST AT REDMAN, OR, THE 1215 WX WAS, IN PART: SKY CLEAR, VIS 10 MI, WIND FM 030 DEG AT 4 KTS. AT SISTERS, OR, THE DENSITY ALT WAS ABT 5500 FT. WITNESSES NOTED THAT DRG TAKEOFF, THE ACFT WAS TAXIED ONTO THE APCH END OF THE RWY, THEN TAXIED DOWN THE RWY ABT 100 FT BEFORE STARTING A ROLLING TAKEOFF. THERE WERE INDCNS THAT THE ACFT WOULD NOT CLR A RIDGE BEYOND THE DEP END OF THE RWY. THE ACFT ENTERED A STEEP LEFT TURN. SUBSEQUENTLY, IT STRUCK TREES ABT 50 FT AGL & CRASHED. WITNESSES RPRTD THE ENG WAS RUNNING AT HI POWER UNTIL IMPACT. ALSO, WITNESSES RPRTD THAT PILOTS, WHO WERE FAMILIAR WITH THE ARPT, FAVORED RWY 20 DRG CALM OR LIGHT WINDS.
Flight
Event TypeAccident
Event Time12:26 PDT
Nearest AirportSisters Eagle Air (1nm N)
Runway2
Runway Length3550 ft
Runway Width50 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftLake LA-250
Tail NumberN1404X
Aircraft CategoryAir
DamageDestroyed
OperatorStuart W Moore
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-C4B5 · Reciprocating · 250
Seats4
People & Injuries
Injury Summary4 injuries (3 fatalities, 1 serious injury)
Fatal3
Serious1
Minor0
Uninjured0
Total4
Crew 1Age 48 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind30° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point39 C
Altimeter30.00 inHg
Observation Time19:15
Weather SourceWFAC