From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot reported noticing an unusual vibration develope while over stillhouse hollow lake. Performed precautionary landing on a _small island_. After the engine was shut off, while the rotor was coasting down, he heard a clunk and the tailboom was struck twice by main rotor blades.
As the FAA filed it
PILOT REPORTED NOTICING AN UNUSUAL VIBRATION DEVELOPE WHILE OVER STILLHOUSE HOLLOW LAKE. PERFORMED PRECAUTIONARY LANDING ON A _SMALL ISLAND_. AFTER THE ENGINE WAS SHUT OFF, WHILE THE ROTOR WAS COASTING DOWN, HE HEARD A CLUNK AND THE TAILBOOM WAS STRUCK TWICE BY MAIN ROTOR BLADES.