St. Louis Downtown-Parks Airport
Aircraft Accident/Incident Report

Cahokia, Illinois 62206
Saturday, June 27, 1998 10:06 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane impacted the runway following the collapse of the left main landing gear and subsequent loss of control, during landing rollout. A metallurgical analysis of the spring down lock adjustment screw was performed. The chemical composition of the adjustment screw conformed to the requirements of MIL-S-6758. The hardness of the adjusting screw was found to be 29-30 HRC and in compliance with MIL-S-6758 for 4130 steel. The adjusting screw fracture exhibited characteristics of overload with no indications of fatigue or corrosion crack. The pilot's operating handbook specifies the maximum demonstrated crosswind velocity to be 19 knots at a landing weight of 5400 lbs. at sea level conditions on a standard day. The 1006 CDT ASOS observation indicates wind velocity to be 210 at 8 knots with no gusts. The empty weight of the aircraft was 3816 lbs. Fuel quantity was reported to be 200 gallons. A review of maintenance records showed that the landing gear had been inspected during a phase two progressive inspection in accordance with the Cessna Aircraft's 310 Service Manual Inspection Checklist. There were no entries in the remarks section of the checklist pertaining to the landing gear. The inspection was completed on April 25, 1998. The time since last inspection was 47 hours.

NTSB Probable Cause Narrative

The collapse of the left main landing gear during landing roll for undetermined reasons.

Event Information

Type of Event Accident
Event Date 6/27/1998
Event Day of the Week Saturday
Time of Event 1006
Event Time Zone Central Daylight Time
Event City CAHOKIA
Event State ILLINOIS
Event Country --
Zipcode of the event site 62206
Event Date Year 1998
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport ST. LOUIS DOWNTOWN-PARKS
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 --
Degrees magnetic from airport --
Airport Elevation 413
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1006 Central Daylight 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 CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling None
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) 30
Dew Point at event time (in degress fahrenheit) 27
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
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 NTSB
NTSB Docket Number (internal use) 1054
NTSB Notification Source --
NTSB Notification Date Jul 28 1998 12:00AM
NTSB Notification Time 1814
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 23 2001 1:55PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4249C
NTSB Number CHI98LA282
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 Cessna
Aircraft Model 310R
Aircraft Series Identifier 310R
Aircraft Serial Number 1380
Certified Max Gross Weight 5535
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Apr 24 1998 12:00AM
Airframe hours since last inspection 47
Airframe Hours 6567
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name PARKS COLLEGE OF ST, LOUIS
Aircraft Owner Street Address P.O. BOX 56907
Aircraft Owner City ST LOUIS
Aircraft Owner State MO
Aircraft Owner Country
Aircraft Owner Zipcode 63156
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 NI1S
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 830
Departure Time Zone CDT
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 23 2001 1:55PM
User who most recently changed record dbo
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 --