Summary
On January 15, 1991, a Air Command 503 (UNREG) was involved in an accident near Tomahawk, WI. The accident resulted in 1 fatal injury. The aircraft was destroyed.
The National Transportation Safety Board determined the probable cause of this accident to be: THE PILOT-IN-COMMAND'S ABRUPT MOVEMENT OF THE FLIGHT CONTROLS WHICH RESULTED IN LOSS OF ROTOR RPM AND EVENTUAL DEPARTURE FROM CONTROLLED FLIGHT. A FACTOR CONTRIBUTING WAS ICE ACCUMULATION ON THE PILOT'S FACE RESULTING IN PILOT INCAPACITATION (VISUAL DEFICIENTY).
This accident is documented in NTSB report CHI91DEP03. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft UNREG.
Accident Details
Probable Cause and Findings
THE PILOT-IN-COMMAND'S ABRUPT MOVEMENT OF THE FLIGHT CONTROLS WHICH RESULTED IN LOSS OF ROTOR RPM AND EVENTUAL DEPARTURE FROM CONTROLLED FLIGHT. A FACTOR CONTRIBUTING WAS ICE ACCUMULATION ON THE PILOT'S FACE RESULTING IN PILOT INCAPACITATION (VISUAL DEFICIENTY).
Aircraft Information
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI91DEP03