NTSB Identification: CHI06CA266.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Saturday, September 16, 2006 in Port Clinton, OH
Probable Cause Approval Date: 12/28/2006
Aircraft: MD Helicopters Inc. 369FF, registration: N530FF
Injuries: 2 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.

The experimental research and developmental helicopter's left boom impacted water during an offshore low level survey flight. The pilot's accident report stated, "While flying an easterly course line at approximately 25 knots over calm surface conditions, a course correction to the left was initiated with 2 degrees of left bank angle. This resulted in the left boom tip touching the surface of the water. The nose of the helicopter pitched down causing the main rotor blades to strike the water. The helicopter became inverted, sinking immediately. The elapsed time between the boom tip contacting the water and the helicopter becoming inverted was approximately three seconds." The pilot reported no mechanical malfunctions in reference to the survey flight.

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

The pilot not maintaining clearance from the water during the survey flight. A factor was the low altitude the survey flight was flown at.

Full narrative available

Index for Sep2006 | Index of months