NTSB Identification: SEA92LA156.
The docket is stored on NTSB microfiche number 46887.
Accident occurred Wednesday, July 15, 1992 in QUILCENE, WA
Probable Cause Approval Date: 08/31/1993
Aircraft: THOMSEN, HORST ROTORWAY "EXEC", registration: NONE
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PILOT OF THE UNREGISTERED EXPERIMENTAL HELICOPTER, WHO DID NOT HOLD AN FAA HELICOPTER PILOT CERTIFICATE, MISJUDGED HIS RATE OF DESCENT WHILE ON FINAL APPROACH TO THE YARD OF HIS PRIVATE RESIDENCE. CORRECTIVE ACTION WAS DELAYED BEYOND A POINT WHERE HE WAS ABLE TO AVOID CONTACTING THE ROOF OF A SMALL OUTBUILDING. AFTER CONTACTING THE OUTBUILDING, THE AIRCRAFT DESCENDED INTO THE GROUND.

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

A MISJUDGED DESCENT RATE, AND DELAYED CORRECTIVE ACTION. FACTORS INCLUDE A LACK OF EXPERIENCE IN THIS TYPE OF AIRCRAFT, AND A BUILDING NEAR THE LANDING AREA.

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