On October 10, 2004, a Hughes 269C (registration N7423F) operated by Dennis Philippi was involved in an aviation accident near Minerva, OH. Investigators recorded the probable cause as: The pilot's failure to maintain control of the helicopter during takeoff, which resulted in the tail boom impacting the ground and separating from the aircraft. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A helicopter's tail boom struck the ground and detached as the pilot attempted to correct a forward tilt during takeoff, with no mechanical issues reported.
What happened
During the initial phase of flight, the helicopter experienced an unexpected forward pitch attitude immediately after lifting off the ground. In response to this deviation, the pilot applied back pressure on the cyclic control to restore the proper pitch attitude. This corrective input resulted in the tail boom striking the surface below. The impact caused the tail boom to separate completely from the main fuselage of the aircraft.
The investigation
Following the incident, an assessment of the helicopter was conducted to determine the condition of the airframe and systems. The pilot provided a statement regarding the mechanical status of the helicopter prior to and during the event. No mechanical deficiencies or malfunctions were identified or reported with respect to the helicopter's operation.
Probable cause
The pilot's failure to maintain control of the helicopter during takeoff, which resulted in the tail boom impacting the ground and separating from the aircraft.