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.
Cook, MN
The pilot stated that he was cruising east in a helicopter. He made a 180 degree turn to the right, flew west for about 40 seconds, and made a 180 degree turn to right. The pilot reported that he rolled out of the turn, but the helicopter continued to turn right. He said that he landed flat, and the spinning helicopter rolled onto its right side. The helicopter was examined after the accident, and no preimpact anomalies were detected. The pilot's safety recommendation was, "Watch your airspeed when turning right so that your tail can still maintain control."
Aircraft-Aircraft propeller/rotor-Rotorcraft flight control-Tail rotor control system-Incorrect use/operation - C
The pilot stated that he was cruising east bound in a helicopter. He made a 180 degree turn to the right, flew west for about 40 seconds, and made a 180 degree turn to right. The pilot reported that he rolled out of the turn and that the helicopter continued to turn right. He said that he landed "flat" and "with the spin the helicopter rolled onto its right side." The airplane was examined after the accident and no pre-impact anomalies were detected. The pilot's safety recommendation was, "Watch your airspeed when turning right so that your tail can still maintain control."