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.
Indianapolis, IN
THE PILOT MADE A PRECAUTIONARY LANDING AT INDIANAPOLIS DUE TO A ROUGH RUNNING ENGINE. A MECHANIC ATTEMPTED TO FIND THE PROBLEM, CLEANED THE PLUGS AND ADDED HYDRAULIC FLUID TO THE AIRPLANE. THE ENGINE ROUGHNESS COULD NOT BE DUPLICATED DURING FURTHER RUNUPS. SHORTLY AFTER TAKEOFF THE ENGINE AGAIN RAN ROUGH AND THE AIRPLANE WOULD NOT SUSTAIN ALTITUDE. THE PILOT RETURNED TO INDIANAPOLIS AND THE AIRPLANE LANDED SHORT OF THE RUNWAY AFTER CONTACTING POWERLINES, TREES AND A FENCE. POST ACCIDENT INSPECTION OF THE ENGINE REVEALED THE FUEL METERING VALVE SCREEN WAS ALMOST COMPLETELY BLOCKED BY FOREIGN MATERIAL, AND THE FUEL DISTRIBUTOR VALVE WAS ALMOST FULL OF WATER.
INADEQUATE MAINTENANCE AND INSPECTION OF THE AIRPLANE RESULTING IN AN ENGINE POWER LOSS DUE TO WATER AND FUEL CONTAMINATION. A CONTRIBUTING FACTOR WAS THE DARK NIGHT.
THE PILOT MADE A PRECAUTIONARY LANDING AT INDIANAPOLIS DUE TO A ROUGH RUNNING ENGINE. A MECHANIC ATTEMPTED TO FIND THE PROBLEM, CLEANED THE PLUGS AND ADDED HYDRAULIC FLUID TO THE AIRPLANE. THE ENGINE ROUGHNESS COULD NOT BE DUPLICATED DURING FURTHER RUNUPS. SHORTLY AFTER TAKEOFF THE ENGINE AGAIN RAN ROUGH AND THE AIRPLANE WOULD NOT SUSTAIN ALTITUDE. THE PILOT RETURNED TO INDIANAPOLIS AND THE AIRPLANE LANDED SHORT OF THE RUNWAY AFTER CONTACTING POWERLINES, TREES AND A FENCE. POST ACCIDENT INSPECTION OF THE ENGINE REVEALED THE FUEL METERING VALVE SCREEN WAS ALMOST COMPLETELY BLOCKED BY FOREIGN MATERIAL, AND THE FUEL DISTRIBUTOR VALVE WAS ALMOST FULL OF WATER.