Aircraft Accident/Incident Report

Winlock, Washington 98596
Thursday, August 13, 1998 18:30 PDT

NTSB Narrative Summary Released at Completion of Accident

Witnesses at a residence on the airstrip observed the airplane make a low pass to the east along the east-west runway of the airstrip, followed by an 8-point roll, a 90-270 degree course reversal, and another low pass to the west with a pull-up into what was described as either a loop or cuban-eight maneuver. Just after attaining the top of this last maneuver, the airplane was rolled out with a heading change toward the south, where it was observed to be near level attitude before the left wing dropped and it disappeared from view due to obscuration by trees. Impact was heard shortly after the airplane disappeared from view. The airplane was located in a wooded area and was consumed by fire. One witness familiar with both the pilot and the airplane had noted a slight hesitation at the top of the loop or cuban-eight maneuver. He observed that the winds aloft were quite strong from the north, which may have caused the airplane to drift south of the east-west runway, so that terrain clearance (due to high trees bordering the south side of the runway) would have been reduced when the pilot was at the top of the maneuver. He noted that he heard no indications of a loss of engine power, although some other witnesses at the same location on the airstrip believed there had been a momentary power interruption before the crash. No evidence of preimpact mechanical deficiency or of pre-impact fire was observed during the on-scene investigation.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate altitude during attempted low-level aerobatics.

Event Information

Type of Event Accident
Event Date 8/13/1998
Event Day of the Week Thursday
Time of Event 1830
Event Time Zone Pacific Daylight Time
Event City WINLOCK
Event State WASHINGTON
Event Country --
Zipcode of the event site 98596
Event Date Year 1998
Event Date Month 8
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Witness
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 Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 10
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 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) 1235
NTSB Notification Source --
NTSB Notification Date Aug 13 1998 12:00AM
NTSB Notification Time 1913
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:43AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N766CA
NTSB Number SEA98FA164
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 North American
Aircraft Model SNJ-5C
Aircraft Series Identifier SNJ-5C
Aircraft Serial Number 78-6999
Certified Max Gross Weight 5340
Aircraft Category Airplane
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 2
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 1 1998 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LARS ERIC HUGO LJUNGQVIST
Aircraft Owner Street Address 12710 SW SARA DR
Aircraft Owner City GASTON
Aircraft Owner State OR
Aircraft Owner Country
Aircraft Owner Zipcode 97119
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 No
Departure Point Same as Event No
Departure Airport Code
Departure City VANCOUVER
Departure State WA
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --