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.
During pre-flight check, pilot removed chock and helicopter rolled off the landing pad hitting a parked vehecle with tail.
Non-certificated pad has an incline. Hyd accumulator bleeds off after 30 min. Pilot was under the impression accumulator pressure would hold.
As the FAA filed it
DURING PRE-FLIGHT CHECK, PILOT REMOVED CHOCK AND HELICOPTER ROLLED OFF THE LANDING PAD HITTING A PARKED VEHECLE WITH TAIL.
NON-CERTIFICATED PAD HAS AN INCLINE. HYD ACCUMULATOR BLEEDS OFF AFTER 30 MIN. PILOT WAS UNDER THE IMPRESSION ACCUMULATOR PRESSURE WOULD HOLD.