Lewis University Airport
Aircraft Accident/Incident Report

Romeoville, Illinois 60441
Saturday, February 19, 2011 9:00 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that the left main landing gear collapsed shortly after touchdown during the landing roll. The airplane subsequently veered to the left and struck a runway edge identifier light. A postaccident examination confirmed that the left main landing gear had partially collapsed into its wheel well. The nose and right main landing gear remained fully extended. Damage sustained to the push-pull tubes that extend and retract the main landing gear precluded the determination of why the left landing gear collapsed. However, the observed damage to the push-pull tubes was likely attributable to the collapse of the left landing gear during the accident sequence. With the exception of the damaged push-pull tubes, there were no additional mechanical or rigging anomalies found with the landing gear extension/retraction system. Additionally, the landing gear position warning horn, instrument panel indicator lights, and floor-mounted visual/mechanical indicator functioned as designed, providing proper indication that the landing gear was in the fully extended position before landing.

NTSB Probable Cause Narrative

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

Event Information

Type of Event Accident
Event Date 2/19/2011
Event Day of the Week Saturday
Time of Event 900
Event Time Zone Central Standard Time
Event City Romeoville
Event State ILLINOIS
Event Country --
Zipcode of the event site 60441
Event Date Year 2011
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 413629N
Event Location Longitude 0880546W
Event Location Airport Lewis University Airport
Event Location Nearest Airport ID KLOT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0.25
Degrees magnetic from airport --
Airport Elevation 679
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 903 Central Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KLOT
Elevation of weather observation facility 679
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) -1
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.39
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KLOT 191503Z AUTO 03005KT 10SM CLR M01/M09 A3039 R
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) 30052
NTSB Notification Source FAA - DuPage FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 29 2012 1:17PM
User who most recently changed record foxt
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N888DF
NTSB Number CEN11FA220
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 Mooney
Aircraft Model M20J
Aircraft Series Identifier --
Aircraft Serial Number 24-3254
Certified Max Gross Weight 3200
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 23 2010 12:00AM
Airframe hours since last inspection 51
Airframe Hours 2120
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name DLM Holding Group, LLC
Aircraft Owner Street Address --
Aircraft Owner City Stevensville
Aircraft Owner State MI
Aircraft Owner Country USA
Aircraft Owner Zipcode 49127
Operator is an individual? No
Operator Name DLM Holding Group, LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Stevensville
Operator State MI
Operator Country USA
Operator Zip code 49127
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 KBEH
Departure City Benton Harbor
Departure State MI
Departure Country USA
Departure Time 930
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code KLOT
Destination City Romeoville
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 29 2012 12:38PM
User who most recently changed record foxt
Since inspection or accident Time of Accident
Event Location Runway Number and Location 02
Runway Length 6500
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --