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 18, 2004 · Piper PA-16 · N5891H
Port Huron, MI
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 18, 2004
Injury Outcomes
No injuries (2 uninjured)
Location
Port Huron, MI
Aircraft
Piper PA-16
Tail Number
N5891H
Operator
Nancy Walters
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI04CA296
The airplane experienced a loss of directional control and gear collapse during a landing roll. The pilot reported the airplane "... lost directional control swerving to right because right landing gear broke. Aircraft slid off runway - crapping right wing tip." According to airport personnel the airplane veered to the left coming to rest off the left side of the runway with the right main landing gear folded under the fuselage. Inspection of the runway revealed two skid marks which veered to the left, followed by another skid mark which contained a gouge in the runway.
NTSB Probable Cause
The pilot's failure to maintain directional control of the airplane during the landing roll which resulted in the overload failure of the right main landing gear.
Full Narrative
On September 18, 2004, at 1530 eastern daylight time, a Piper PA-16, N5891H, experienced a loss of directional control while landing on runway 04 (5,103 feet by 100 feet, asphalt) at the St. Clair County Airport, Port Huron, Michigan. The pilot and passenger were not injured. The airplane was substantially damaged when the right main landing gear collapsed. The 14 CFR Part 91 personal flight was operating in visual meteorological conditions without a flight plan. The flight originated from Waterford, Michigan, at 1430. The pilot reported the airplane "... lost directional control swerving to right because right landing gear broke. Aircraft slid off runway - scrapping right wing tip." According to airport personnel the airplane veered to the left coming to rest off the left side of the runway with the right main landing gear folded under the fuselage. Inspection of the runway revealed two skid marks which veered to the left, followed by another skid mark which contained a gouge in the runway.
Flight
Event TypeAccident
Event Time15:30 EDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft
AircraftPiper PA-16
Tail NumberN5891H
Aircraft CategoryAir
DamageSubstantial
OperatorNancy Walters
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-C1 · Reciprocating
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 59 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind40° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point64 F / 48
Altimeter30.25 inHg
Observation Time15:15
Weather SourceWFAC