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.
Mt Clemens, MI
AFTER APRX 20 SUCCESSFUL TAKEOFFS & LANDINGS, THE ENG OF THE HELICOPTER LOST POWER AT ABOUT 300 FT AGL, DUE TO A #1 CONNECTING ROD FAILURE. DURING AN AUTOROTATION, THE HELICOPTER LANDED IN TREES & WAS DESTROYED. ALTHOUGH THE PILOT WAS INSTRUCTING A NEW STUDENT PILOT, HE HELD NO FAA FLYING CERTIFICATE. THE LAST ANNUAL INSPECTION OF THE HELICOPTER WAS DATED 12/2/75. A TEARDOWN OF THE ENG REVEALED DISCREPANCIES IN THE INSTALLATION OF THE #2, #3 & #4 ROD CAPS. DUE TO THE DAMAGE, PROPER INSTALLATION OF THE #1 ROD CAP COULD NOT BE VERIFIED.
AFTER APRX 20 SUCCESSFUL TAKEOFFS & LANDINGS, THE ENG OF THE HELICOPTER LOST POWER AT ABOUT 300 FT AGL, DUE TO A #1 CONNECTING ROD FAILURE. DURING AN AUTOROTATION, THE HELICOPTER LANDED IN TREES & WAS DESTROYED. ALTHOUGH THE PILOT WAS INSTRUCTING A NEW STUDENT PILOT, HE HELD NO FAA FLYING CERTIFICATE. THE LAST ANNUAL INSPECTION OF THE HELICOPTER WAS DATED 12/2/75. A TEARDOWN OF THE ENG REVEALED DISCREPANCIES IN THE INSTALLATION OF THE #2, #3 & #4 ROD CAPS. DUE TO THE DAMAGE, PROPER INSTALLATION OF THE #1 ROD CAP COULD NOT BE VERIFIED.