Aircraft Accident/Incident Report

Wilsonville, Oregon 97070
Saturday, December 12, 1992 16:05 PST

NTSB Narrative Summary Released at Completion of Accident

WITNESSES REPORTED SEEING THE AIRPLANE FLYING IN A NORMAL CRUISE ATTITUDE WHEN IT ROLLED INVERTED AND THE NOSE DROPPED NEAR VERTICAL TO THE TERRAIN. THE AIRPLANE DESCENDED IN A NEAR VERTICAL DIVE. THE NOSE OF THE AIRPLANE STARTED TO COME UP HORIZONTAL TO THE TERRAIN WHEN IT STRUCK A 75-FT TREE. DURING THE POST CRASH INVESTIGATION, NO EVIDENCE OF A MECHANICAL FAILURE OR MALFUNCTION WAS FOUND.

NTSB Probable Cause Narrative

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT.

Event Information

Type of Event Accident
Event Date 12/12/1992
Event Day of the Week Saturday
Time of Event 1605
Event Time Zone Pacific Standard Time
Event City WILSONVILLE
Event State OREGON
Event Country --
Zipcode of the event site 97070
Event Date Year 1992
Event Date Month 12
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 1500 Pacific Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID PDX
Elevation of weather observation facility 27
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 3200
Lowest Non-Ceiling Height 1900
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) 10
Air Temperature at event time (in degrees celsius) 4
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 5
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) 982
NTSB Notification Source --
NTSB Notification Date Dec 12 1992 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information 51631
Date of most recent change to record Dec 11 2000 3:30PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N98489
NTSB Number SEA93FA035
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 Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 421C
Aircraft Series Identifier 421C
Aircraft Serial Number 421C0067
Certified Max Gross Weight 7100
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 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 27 1991 12:00AM
Airframe hours since last inspection 62
Airframe Hours 2474
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name FREDERICKS, RICHARD R.
Aircraft Owner Street Address P.O. BOX 3541
Aircraft Owner City PALM DESERT
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92261
Operator is an individual? --
Operator Name HIGGINS, ARTHUR B.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 22831 S.W. JOHNSON RD
Operator City WEST LINN
Operator State OR
Operator Country
Operator Zip code 97068
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 PDX
Departure City PORTLAND
Departure State OR
Departure Country
Departure Time 1553
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code 3S2
Destination City AURORA
Destination State OR
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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --