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.
Henniker, NH
The pilot was landing the helicopter at a private heliport. The outside air temperature was about -1 degree Celsius (C). After a normal touchdown, the helicopter began to spin and the tail rotor struck a snow bank, which resulted in substantial damage to the tail rotor and lower vertical stabilizer. After exiting the helicopter, the pilot noted that the ground was coated with "black ice." The pilot reported that he did not experience any malfunctions or failures of the helicopter that would have precluded normal operation. He further reported about 635 hours of rotorcraft flight experience, which included 85 hours in the same make and model as the accident helicopter.
The pilot's failure to maintain aircraft control while landing, which resulted in a collision with a snow bank. Contributing to the accident was ice that covered the landing surface.
The pilot was landing the helicopter at a private heliport. The outside air temperature was about -1 degree Celsius (C). After a normal touchdown, the helicopter began to spin and the tail rotor struck a snow bank, which resulted in substantial damage to the tail rotor and lower vertical stabilizer. After exiting the helicopter, the pilot noted that the ground was coated with "black ice." The pilot reported that he did not experience any malfunctions or failures of the helicopter that would have precluded normal operation. He further reported about 635 hours of rotorcraft flight experience, which included 85 hours in the same make and model as the accident helicopter.