NTSB

Improperly secured B-nut went undetected during recent annual inspection. It led to a fatal accident.

Letter from NTSB agency chair cites concerns tied to January midair collision.

Pilot and passenger fatally injured when a TBM-700 went down in quarry near Monroe Municipal Airport.

Report details United windshield impact, balloon proximity and early findings.

Early engine-pylon separation triggered catastrophic loss of control, investigators say.

Preliminary NTSB report of Indiana Funk crash found the aircraft’s engine in good condition, despite witness reports of an engine-off landing.

Preliminary report details sequence of fatal Hawker test flight.

Final on-scene briefing highlights key findings, next investigative steps for the Louisville UPS crash.

Investigators confirm successful data recovery from recorders, continue engine analysis in Louisville.

Agency confirms engine separation during takeoff and recovery of flight recorders as NTSB investigation into MD-11 crash begins.