Aircraft Accident/Incident Report

Quilcene, Washington 98376
Wednesday, July 15, 1992 19:20 PDT

NTSB Narrative Summary Released at Completion of Accident

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.

NTSB Probable Cause Narrative

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.

Event Information

Type of Event Accident
Event Date 7/15/1992
Event Day of the Week Wednesday
Time of Event 1920
Event Time Zone Pacific Daylight Time
Event City QUILCENE
Event State WASHINGTON
Event Country --
Zipcode of the event site 98376
Event Date Year 1992
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2096
NTSB Notification Source --
NTSB Notification Date Jul 15 1992 12:00AM
NTSB Notification Time 2015
Fiche Number and/or location -used to find docket information 46887
Date of most recent change to record Dec 11 2000 3:06PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number NONE
NTSB Number SEA92LA156
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name THOMSEN, HORST
Aircraft Model ROTORWAY "EXEC"
Aircraft Series Identifier ROTORWAY "
Aircraft Serial Number
Certified Max Gross Weight 1320
Aircraft Category Helicopter
Aircraft Registration Class Not Registered
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Jan 2 1900 12:00AM
Airframe hours since last inspection --
Airframe Hours 14
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name THOMSEN, HORST
Aircraft Owner Street Address 20867 HIGHWAY 101
Aircraft Owner City QUILCENE
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 98376
Operator is an individual? --
Operator Name THOMSEN, HORST
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 20867 HIGHWAY 101
Operator City QUILCENE
Operator State WA
Operator Country
Operator Zip code 98376
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1915
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --