Aircraft Accident/Incident Report

Everett, Washington 98222
Saturday, September 24, 1988 13:20 PDT

NTSB Narrative Summary Released at Completion of Accident

JUST PRIOR TO THE ACDNT, WITNESSES SAW THE ACFT IN A STEEP, HIGH SPEED DESCENT. IMPACT OCCURRED IN SOFT, MARSHY TERRAIN & MUCH OF THE WRECKAGE WAS BURIED. NO MECHANICAL REASON WAS FOUND FOR A LOSS OF CONTROL; HOWEVER, THE ACFT WAS EXTENSIVELY DAMAGED DRG IMPACT. ABOUT 5 MI ENE AT PAYNE FIELD, THE WX WAS, IN PART: 3500' SCATTERED, 7500' OVERCAST, VISIBILITY 3 MI WITH LIGHT DRIZZLE & FOG, WIND 040 AT 5 KTS. APRX 9 MI NORTH AT CASCADE AIRPARK, THE CEILING WAS ESTIMATED TO BE 500' TO 800'.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/24/1988
Event Day of the Week Saturday
Time of Event 1320
Event Time Zone Pacific Daylight Time
Event City EVERETT
Event State WASHINGTON
Event Country --
Zipcode of the event site 98222
Event Date Year 1988
Event Date Month 9
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 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1345 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 70
Weather Observation Facility ID PAE
Elevation of weather observation facility 603
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 3
Air Temperature at event time (in degrees celsius) 11
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1798
NTSB Notification Source --
NTSB Notification Date Sep 24 1988 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information 38046
Date of most recent change to record Dec 13 2000 12:09PM
User who most recently changed record dbo
Basic weather conditions Unknown
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7SV
NTSB Number SEA88LA188
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SVENSSON
Aircraft Model BUSHBY MUSTANG II
Aircraft Series Identifier BUSHBY MUS
Aircraft Serial Number 479
Certified Max Gross Weight 1000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
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 --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name CARL I. SVENSON
Aircraft Owner Street Address 2015 168TH AVENUE SE
Aircraft Owner City BELLEVUE
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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 Yes
Departure Point Same as Event No
Departure Airport Code
Departure City EVERETT
Departure State WA
Departure Country
Departure Time 1300
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --