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.
Denver, CO
DURING THE TAXI FOR TAKEOFF, THE CREW NOTED A HYDRAULIC MALFUNCTION ON THE RIGHT MAIN GEAR AND RETURNED TO THE GATE FOR MAINTENANCE. THE AIRCRAFT WAS SHUT DOWN AND TURNED OVER TO THE MAINTENANCE CREW FOR REPAIR. THE PASSENGERS WERE NOT DEPLANED. DURING MAINTENANCE TROUBLESHOOTING PROCEDURES FOR THE HYDRAULIC LEAK, THE GEAR HANDLE WAS RAISED WITHOUT THE GEAR LOCKING PINS INSTALLED. THIS ALLOWED THE NOSE GEAR TO RETRACT AND THE NOSE SETTLED ONTO A PARKED TUG. INVESTIGATION REVEALED THAT THE APPLICABLE CHECKLIST WAS NOT USED AND POSITIVE COMMUNICATIONS WERE NOT ESTABLISHED BETWEEN THE MAINTENANCE PERSONNEL IN THE COCKPIT AND THOSE ON THE GROUND.
DURING THE TAXI FOR TAKEOFF, THE CREW NOTED A HYDRAULIC MALFUNCTION ON THE RIGHT MAIN GEAR AND RETURNED TO THE GATE FOR MAINTENANCE. THE AIRCRAFT WAS SHUT DOWN AND TURNED OVER TO THE MAINTENANCE CREW FOR REPAIR. THE PASSENGERS WERE NOT DEPLANED. DURING MAINTENANCE TROUBLESHOOTING PROCEDURES FOR THE HYDRAULIC LEAK, THE GEAR HANDLE WAS RAISED WITHOUT THE GEAR LOCKING PINS INSTALLED. THIS ALLOWED THE NOSE GEAR TO RETRACT AND THE NOSE SETTLED ONTO A PARKED TUG. INVESTIGATION REVEALED THAT THE APPLICABLE CHECKLIST WAS NOT USED AND POSITIVE COMMUNICATIONS WERE NOT ESTABLISHED BETWEEN THE MAINTENANCE PERSONNEL IN THE COCKPIT AND THOSE ON THE GROUND.