Overall Trends
Total, fatal, and serious accidents in the selected range.
Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.
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.
Port Alsworth, AK
THE PILOT STATED THAT HE WAS LANDING ON A RIDGE AND THE LANDING AREA WAS ROUGHER THAN HE EXPECTED. UPON LANDING THE MAIN GEAR COLLAPSED AND THE WHEELS BENT THE WING STRUTS.
THE PILOT'S SELECTION OF UNSUITABLE TERRAIN.
On September 2, 1994, at 1900 Alaska daylight time, a wheel equipped Maule M5, airplane, N51637, registered to and operated by the pilot, collapsed its main gear during landing at a field site located 30 miles northwest of Port Alsworth, Alaska. The personal flight, operating under 14 CFR Part 91 for the purposes of hunting, departed Merrill Field, Anchorage, Alaska, and the destination was the accident site. A VFR flight plan was filed and visual meteorological conditions prevailed. The airplane received substantial damage and the pilot and the two passengers were not injured. According to the pilot, he landed on a ridge and the surface was rougher than he expected. The main gear collapsed and bent the wing struts during the landing roll.