Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Kent, Washington 98042
Saturday, April 14, 1984 10:10 PST
NTSB Narrative Summary Released at Completion of Accident
THE PLT REQUESTED CLEARANCE TO TRANSIT THE SEATTLE TCA FOR A LANDING AT BOEING FIELD. HE WAS ADVISED OF A DC-10 DEPARTING THE SEATTLE-TACOMA INTL ARPT & WAS CAUTIONED ABOUT POSSIBLE WAKE TURBULENCE. THE DC-10 PASSED THE HELICOPTER WITH ABOUT 1 1/2 MI LATERAL SEPARATION & WAS ABOUT 600 FT HIGHER THAN THE HELICOPTER. SHORTLY AFTER THAT, THE HELICOPTER ENCOUNTERED VIOLENT VORTEX TURBULENCE. IT EXCEEDED 90 DEG OF BANK & 90 DEG OF NOSE DOWN ATTITUDE, AT WHICH TIME, THE ENG FLAMED OUT. THE TURBULENCE CONTINUED THRU-OUT THE ENSUING AUTOROTATION, BUT DIMINISHED DURING THE LAST 100 TO 200 FT. THE PLT TRIED TO FLARE FOR A LANDING, BUT THE MAIN ROTOR BLADES FLEXED DOWNWIND & CONTACTED THE TAIL BOOM. DURING RECOVERY, LESS THAN 1 QT OF FUEL WAS FOUND IN THE HELICOPTER.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 4/14/1984 |
| Event Day of the Week | Saturday |
| Time of Event | 1010 |
| Event Time Zone | Pacific Standard Time |
| Event City | KENT |
| Event State | WASHINGTON |
| Event Country | -- |
| Zipcode of the event site | 98042 |
| Event Date Year | 1984 |
| Event Date Month | 4 |
| 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 | Weather Observation Facility |
| Time of the weather observation | 856 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 310 |
| Weather Observation Facility ID | SEA |
| Elevation of weather observation facility | 17 |
| Distance of event from weather observation facility (units?) | 7 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 20000 |
| Lowest Non-Ceiling Height | 15000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 70 |
| Air Temperature at event time (in degrees celsius) | 16 |
| Dew Point at event time (in degress fahrenheit) | 8 |
| Wind Direction (degrees magnetic) | 170 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| 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) | 334 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 23955 |
| Date of most recent change to record | Sep 25 2006 4:04PM |
| User who most recently changed record | NTSB\ZUZL |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N1092L |
| NTSB Number | SEA84LA083 |
| 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 | HUGHES |
| Aircraft Model | 369D |
| Aircraft Series Identifier | 369D |
| Aircraft Serial Number | 410940D |
| Certified Max Gross Weight | 3000 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Apr 3 1984 12:00AM |
| Airframe hours since last inspection | 15 |
| Airframe Hours | 1411 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | AUTO PUBLICATIONS,INC. |
| Aircraft Owner Street Address | 814 SOUTH MAIN STREET |
| Aircraft Owner City | SALT LAKE CITY |
| Aircraft Owner State | UT |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 84101 |
| Operator is an individual? | -- |
| Operator Name | |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 6627 SOUTH 191ST PL. F-104 |
| Operator City | KENT |
| Operator State | WA |
| Operator Country | |
| Operator Zip code | 98042 |
| Operator Code | |
| Owner has at least one certificate | Yes - certificate holder |
| 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) | Ferry |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | PDT |
| Departure City | PENDLETON |
| Departure State | OR |
| Departure Country | |
| Departure Time | 817 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | BFI |
| Destination City | SEATTLE |
| Destination State | WA |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:36AM |
| 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 | -- |