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 14, 1999 · Piper J4A · N30412
Howell, MI
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 14, 1999
Injury Outcomes
No injuries (2 uninjured)
Location
Howell, MI
Aircraft
Piper J4A
Tail Number
N30412
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI99LA107
The pilot reported the accident occurred as he was turning the airplane around on the runway after landing. He reported that the airplane nosed over after contacting snow off the left side of the runway. The runway was 4,300 feet long and 75 feet wide.
NTSB Probable Cause
the pilot's failure to maintain clearance with the snow covered terrain off the side of the runway while turning the airplane around on the runway. A factor associated with the accident was the snow covered terrain.
Full Narrative
On March 14, 1999, at 1300 eastern standard time, a Piper J4A, NC30412, operated by an Airline Transport rated pilot nosed over while taxiing after landing on runway 31 (4,300' x 75') at the Livingston County Airport, Howell, Michigan. The pilot and passenger were not injured. The airplane was substantially damaged. The 14 CFR Part 91 personal flight was operating in visual meteorological conditions. The departure airport is unknown at this time. The pilot reported the accident occurred as he was turning the airplane around on the runway after landing. He reported that the airplane nosed over after contacting snow off the left side of the runway.
Flight
Event TypeAccident
Event Time13:00 EST
Nearest AirportLivingston County (0nm)
Runway31
Runway Length4300 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper J4A
Tail NumberN30412
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C-85 · Reciprocating · 85
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 55 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind20° @ 14 kt, gusting 19 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point45 C / 0 C
Altimeter0
Weather SourcePILO