NTSB Identification: ERA11CA059
14 CFR Part 137: Agricultural
Accident occurred Monday, November 15, 2010 in Madison, FL
Probable Cause Approval Date: 03/16/2011
Aircraft: HILLER-ROGERSON HELICOPTER UH12E, registration: N4034Z
Injuries: 1 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

According to the helicopter pilot, he was completing north-south herbicide spray patterns with wind varying from east to south at 4 to 5 mph. As the pilot positioned the helicopter for the next northern track, after completing his turn, he began to feel it lose altitude. The pilot stated that he tried to regain control by pushing forward the cyclic and lowering the collective in an effort to get out of the settling with power. When ground contact was imminent, he raised the collective to cushion the impact. The helicopter touched down, spun, and rolled onto its left side. Postaccident examination by a Federal Aviation Administration inspector revealed substantial damage to the tail boom. The pilot stated that there were no preimpact mechanical malfunctions with the helicopter.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot's encounter with a settling with power condition while he was performing slow, low-level, out-of- ground-effect flight maneuvers.

Full narrative available

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