St. Louis Downtown Airport
Aircraft Accident/Incident Report

Cahokia, Illinois 62206
Saturday, March 8, 2003 10:17 CST

NTSB Narrative Summary Released at Completion of Accident

The airplane experienced a landing gear collapse following a loss of directional control while landing on runway 12R at the St. Louis Downtown Airport, Cahokia, Illinois. The pilot reported the wind shifted during the landing and the airplane swerved on the runway. He stated he added a little power to straighten out the airplane, but he "ran out" of aileron authority. The airplane continued off the runway where the landing gear collapsed. The local winds reported at CPS, at 0853, were 180 degrees at 11 knots, gusting to 16 knots. At 0953, the winds were 180 degrees at 9 knots, gusting to 18 knots, and at 1053, the winds were from 200 degrees at 15 knots, gusting to 22 knots. The maximum demonstrated crosswind component for the airplane is 15 miles per hour.

NTSB Probable Cause Narrative

The pilot’s inadequate compensation for wind and his failure to maintain directional control of the airplane which resulted in a ground loop. A factor associated with the accident was the gusty crosswind condition.

Event Information

Type of Event Accident
Event Date 3/8/2003
Event Day of the Week Saturday
Time of Event 1017
Event Time Zone Central Standard Time
Event City Cahokia
Event State ILLINOIS
Event Country --
Zipcode of the event site 62206
Event Date Year 2003
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 383424N
Event Location Longitude 0900937W
Event Location Airport St. Louis Downtown Airport
Event Location Nearest Airport ID CPS
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 413
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 953 Central Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID CPS
Elevation of weather observation facility 413
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 18
Altimeter Setting at event time (in. Hg) 29.79
Density Altitude (feet) 896
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 13577
NTSB Notification Source FAA
NTSB Notification Date Mar 13 2003 12:00AM
NTSB Notification Time 1300
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 1 2003 9:44AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office St. Louis, MO FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N96033
NTSB Number CHI03LA091
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Aviat
Aircraft Model A-1
Aircraft Series Identifier --
Aircraft Serial Number 1127
Certified Max Gross Weight 1800
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 Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 22 2002 12:00AM
Airframe hours since last inspection 50
Airframe Hours 630
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name TBF Group LLC
Aircraft Owner Street Address 1541 Dietrich Ridge Drive
Aircraft Owner City Ballwin
Aircraft Owner State MO
Aircraft Owner Country USA
Aircraft Owner Zipcode 63021
Operator is an individual? No
Operator Name John B. Brnjac
Operator Same as Owner? No
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? --
Certified for Part 133 or 137 Operation --
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 1HO
Departure City Creve Coeur
Departure State MO
Departure Country USA
Departure Time 945
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code CPS
Destination City Cahokia
Destination State IL
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 11 2003 6:42PM
User who most recently changed record SULP
Since inspection or accident --
Event Location Runway Number and Location 12R
Runway Length 6997
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --