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.
Valley Center, CA
The helicopter pilot reported that, during reloading operations for an agricultural spray flight and while boarding the helicopter, which was positioned on top of the loading truck's platform, he saw that the load fill hose was not connected to the helicopter. However, before starting the helicopter, and unknown to the pilot, the ground crew connected the hose. During takeoff, the helicopter rotated about 180º to the right, the helicopter's right skid struck the truck's hood, and the helicopter then rolled right and impacted terrain. The helicopter sustained substantial damage to the main rotor system. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
The ground crew’s attachment of the load fill hose to the helicopter without telling the pilot, which resulted in a loss of helicopter control during takeoff.
The helicopter pilot reported that, during the reloading operation for an agricultural spray flight, while boarding the helicopter positioned on top of the truck's platform, he saw that the load fill hose was not connected to the helicopter. However, prior to starting the helicopter, and unknown to the pilot, the groundcrew connected the hose. During takeoff, the helicopter rotated about 180º to the right, the helicopter's right skid struck the hood of the truck, the helicopter rolled to the right and impacted the terrain. The helicopter sustained substantial damage to the main rotor system. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.