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.
While tracking main rotor blade in hover, antinode bar 2253 1124 1, parted from retainer, unbalancing blade.
As the FAA filed it
WHILE TRACKING MAIN ROTOR BLADE IN HOVER, ANTINODE BAR 2253 1124 1, PARTED FROM RETAINER, UNBALANCING BLADE.
Other reports on N48121 · 1
Matched to the same aircraft by N-number and date.