No fatalities

26 Jun 2012: SCHWEIZER(HUGHES)AIRCRAFT CORP TH55A/269A — Lowry Flying Service — Grinnell, IA

Grinnell, IA, United States

On 26 Jun 2012, a SCHWEIZER(HUGHES)AIRCRAFT CORP TH55A/269A operated by Lowry Flying Service was involved in an aviation accident near Grinnell, IA. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s inadequate compensation for the wind during a hovering maneuver, which resulted in a loss of tail rotor effectiveness and directional control. This summary draws on records from NTSB; 2 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A helicopter with pilot and passenger returning from local flight entered a hover in gusting wind, then spun during a pedal turn. The tailrotor struck a fence, main rotor blades hit ground, resulting in substantial damage. No mechanical issues reported.

Accident Details

The accident occurred while the pilot and passenger were returning to the airport after a local flight. During preparation to land, the pilot approached a grassy area adjacent to the runway and entered a hover into a 12-knot wind, which was gusting to 16 knots.

Maneuvers and Loss of Control

The pilot then made a right pedal turn downwind. According to the pilot, during the turn the wind caught the tail and the helicopter began to spin. The pilot indicated that he did not have enough left pedal to stop the turning motion.

Damage

As a result of the spin, the tailrotor struck a fence, and the main rotor blades hit the ground. A review of photographs taken after the accident revealed that the tail rotor blades, main rotor blades, and fuselage were substantially damaged.

Mechanical Status

The pilot reported no mechanical malfunctions prior to the accident.

Contributing factors

PilotResponse/compensation