Olson Airport
Aircraft Accident/Incident Report

Plato Center, Illinois 60170
Saturday, September 22, 1984 15:20 CDT

NTSB Narrative Summary Released at Completion of Accident

THE ACFT STALLED & SPUN TO THE GROUND FROM ABOUT 200 FT AGL AFTER AN ABRUPT PULL-UP TO APRX 45 DEGREE DECK ANGLE DURING A PREMATURE LIFTOFF. THE PLT HAD BEEN OBSERVED MAKING HIGH SPEED TAXI RUNS 'TO GET THE FEEL OF THE ACFT'. AFTER A RUN RESULTED IN A LIFTOFF, THE RT WING DROPPED & ALMOST HIT THE RWY. THE PLT WAS OBSERVED RAISING THE WING BY APPLICATION OFTHE FLT CONTROLS BUT NO LOWERING OF THE NOSE OCCURRED. THE ACFT CONTINUED THE STEEPER THAN NORMAL CLIMB AND REACHED AN ALT OF APRX 150 FT AGL BEFORE THE RT WING DROPPED TWO MORE TIMES. ONE RECOVERY OF BANK WAS ACCOMPLISHED WITH THE NOSE OFTHE ACFT STILL MAINTAINED IN A CLIMB ATTITUDE. THE WING DROPPED SHARPLY THE 3RD TIME AND THE ACFT WENT INTO A SPIN FROM WHICH NO RECOVERY WAS MADE. THE WITNESSES SAID THAT THE ACFT NEVER APPEARED TO REACH THE PROPER FLYING SPEED. THE ACFT OWNER HAD JUST FLOWN IN THIS ACFT WITH NO MECHANICAL DIFFICULTIES AS STATED IN HIS REPORT. THE PLT HAD LOGGED NO FLT TIME SINCE 1/4/84. NO MEDICAL OR MECHANICAL DISCREPANCIES WERE FOUND DURING THE INVESTIGATION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/22/1984
Event Day of the Week Saturday
Time of Event 1520
Event Time Zone Central Daylight Time
Event City PLATO CENTER
Event State ILLINOIS
Event Country --
Zipcode of the event site 60170
Event Date Year 1984
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport OLSON
Event Location Nearest Airport ID LL53
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 250
Airport Elevation 955
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1600 Central Daylight Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID DPA
Elevation of weather observation facility 757
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height 1000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Unknown
Wind Speed (knots) 6
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2380
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 26310
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N199B
NTSB Number CHI84FA396
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 ROBERT EGGEBRECHT
Aircraft Model SONERAI 2L
Aircraft Series Identifier SONERAI 2L
Aircraft Serial Number 1022L
Certified Max Gross Weight 950
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 AAIP
Date of Last Inspection Sep 14 1983 12:00AM
Airframe hours since last inspection 68
Airframe Hours 89
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name EDWARD H. PAXTON
Aircraft Owner Street Address 220 HAWTHORNE RD.
Aircraft Owner City LAKE-IN-HILLS
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 60195
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt dest & departure same, accident can occur anywhere
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 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 23
Runway Length 2000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --