Audubon Municipal Airport
Aircraft Accident/Incident Report

Audubon, Iowa 50025
Sunday, June 5, 1988 9:15 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT STATED THAT THE TAKEOFF RUN AND LIFTOFF APPEARED NORMAL, BUT AFTER LIFTOFF THE AIRCRAFT VEERED TO THE RIGHT (INTO THE CROSSWIND). THE PILOT ATTEMPTED TO CORRECT WITH LEFT RUDDER AND AILERON. WHEN HE WAS UNSUCCESSFUL, HE RETARDED THROTTLE. THE PLANE STRUCK THE GROUND WITH THE RIGHT WING AND RIGHT LANDING GEAR, STARTED TO GROUND-LOOP, HIT TWO PEDESTRIANS AND A PARKED A/C.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/5/1988
Event Day of the Week Sunday
Time of Event 915
Event Time Zone Central Daylight Time
Event City AUDUBON
Event State IOWA
Event Country --
Zipcode of the event site 50025
Event Date Year 1988
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport AUDUBON MUNICIPAL
Event Location Nearest Airport ID ADU
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 1300
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
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) 15
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 190
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) 2000
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency FAA
NTSB Docket Number (internal use) 814
NTSB Notification Source --
NTSB Notification Date Jun 5 1988 12:00AM
NTSB Notification Time 920
Fiche Number and/or location -used to find docket information 36730
Date of most recent change to record Feb 21 2002 3:14PM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N116LB
NTSB Number MKC88DCD01
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 BOHNKER
Aircraft Model TIERRA II
Aircraft Series Identifier TIERRA II
Aircraft Serial Number 1
Certified Max Gross Weight 900
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 Annual
Date of Last Inspection Jan 17 1988 12:00AM
Airframe hours since last inspection 31
Airframe Hours 125
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BOHNKER, LARRY L.
Aircraft Owner Street Address 1602 SOUTH MAIN
Aircraft Owner City DENISON
Aircraft Owner State IA
Aircraft Owner Country
Aircraft Owner Zipcode 51442
Operator is an individual? --
Operator Name LARRY BOHNKER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1602 SOUTH MAIN
Operator City DENISON
Operator State IA
Operator Country
Operator Zip code 51442
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 915
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code DNS
Destination City DENISON
Destination State IA
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 14
Runway Length 3000
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --