Aircraft Accident/Incident Report

Auburn, Washington 98092
Sunday, May 23, 2004 14:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that while in cruise flight at about 900 to 1,000 feet above ground level, 95 knots, and 80% torque, without warning, the helicopter suddenly lost altitude and yawed violently to the left and rapidly rolled (pilot unsure as to which direction). The pilot initiated an autorotation to a field, maneuvering to avoid trees. The pilot stated that during the flare, he pulled in collective, and the helicopter yawed, so he "rolled off the throttle." The helicopter touched down with almost no forward speed, the right landing skid collapsed and rolled over onto its right side. The pilot stated that he did not recall hearing the engine out beeper or the low rotor RPM horn and he did not note the engine or rotor RPM indications during the descent. Post accident inspection of the airframe and subsequent inspection and teardown of the engine and associated components did not find evidence of a mechanical failure or malfunction.

NTSB Probable Cause Narrative

Loss of control for undetermined reasons.

Event Information

Type of Event Accident
Event Date 5/23/2004
Event Day of the Week Sunday
Time of Event 1415
Event Time Zone Pacific Daylight Time
Event City Auburn
Event State WASHINGTON
Event Country --
Zipcode of the event site 98092
Event Date Year 2004
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 471600N
Event Location Longitude 1220843W
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1356 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 290
Weather Observation Facility ID SEA
Elevation of weather observation facility 433
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 11000
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 17227
NTSB Notification Source FAA Regional Operations Center
NTSB Notification Date May 23 2004 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jan 27 2005 3:52PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Seattle, Washington

Aircraft Involved

Aircraft #1

Aircraft Registration Number N206AF
NTSB Number SEA04LA090
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206B
Aircraft Series Identifier --
Aircraft Serial Number 2473
Certified Max Gross Weight 3200
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 3 2003 12:00AM
Airframe hours since last inspection 97
Airframe Hours 1928
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Global Helicopter LLC
Aircraft Owner Street Address P.O. Box 178
Aircraft Owner City Bow
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 98232
Operator is an individual? No
Operator Name Thomas J. Paulus
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Bow
Operator State WA
Operator Country USA
Operator Zip code 98232
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 No
Departure Airport Code --
Departure City Bow
Departure State WA
Departure Country USA
Departure Time 1300
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City Enumclaw
Destination State WA
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record --
User who most recently changed record --
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --