No fatalities

HUGHES 269A accident at Anderson, SC, 27 Jun 2023

Anderson, SC, United States

On June 27, 2023, a HUGHES 269A was involved in an aviation accident near Anderson, SC. No fatalities were reported. Investigators recorded the probable cause as: The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing.

— NTSB Determination

Contributing factors

Incorrect service/maintenanceMaintenance personnel

Frequently asked questions

What happened in the 27 Jun 2023 HUGHES 269A accident near Anderson, SC?

The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing.

Were there any fatalities in the 27 Jun 2023 HUGHES 269A accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 27 Jun 2023 involved a HUGHES 269A, at Anderson, SC.

What was the probable cause of the accident?

The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing.