Final
None
Jun 27, 2023
N90270 accident at Anderson, SC
Hughes 269A — Ground resonance at AND (Anderson, SC)
DateJun 27, 2023
Tail numberN90270
AircraftHughes 269A · Schweizer 269/300 · H269
LocationAND — Anderson, SC
Phase of flightLanding
OperationPart 91 Flight test
InjuriesNone
NTSB caseERA23LA289
Probable cause
The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing.
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