Collin County Regional Airport
Aircraft Accident/Incident Report

Mckinney, Texas 75069
Friday, April 13, 2007 14:59 CDT

NTSB Narrative Summary Released at Completion of Accident

The 24,355-hour airline transport pilot was conducting an instructional training flight with a 30,000-hour airline transport pilot performing touch and go landings to Runway 17 in a light twin-engine airplane. During the landing touchdown to the 7,000-feet long, by 100-feet wide asphalt runway, the right main landing gear collapsed. The flight instructor reported in the NTSB Form 6120.1 (Pilot/Operator Aircraft Accident/Incident Report) that immediately after touchdown on the runway, the "right side slowly lowered." The pilot receiving instruction was on the controls and announced "something is wrong" and both pilots immediately applied full left aileron and left brake to limit the right yaw. The aircraft departed the runway on the right side onto the grass and a shallow ditch before coming to a stop with the right gear collapsed and nose and left gear down and locked. The aircraft sustained structural damage to the right wing and right horizontal stabilizer and both occupants were able to egress the airplane unassisted. Neither pilot was injured. A post-accident inspection of the wreckage by a Federal Aviation Administration inspector revealed that the right landing gear over-center down link lock failed on touchdown. The weather at the accident site was reported as wind from 100 degrees at 9 knots, overcast skies at 2,000 feet, 10 miles visibility, and a barometric pressure setting of 29.70 inches of Mercury.

NTSB Probable Cause Narrative

The collapsed of the right main landing gear as result of the failure of the over center down lock.

Event Information

Type of Event Accident
Event Date 4/13/2007
Event Day of the Week Friday
Time of Event 1459
Event Time Zone Central Daylight Time
Event City McKinney
Event State TEXAS
Event Country --
Zipcode of the event site 75069
Event Date Year 2007
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 331041N
Event Location Longitude 0963526W
Event Location Airport Collin County Regional Airport
Event Location Nearest Airport ID KTKI
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 585
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID KTKI
Elevation of weather observation facility 585
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Overcast
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) 13
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29.7
Density Altitude (feet) --
Intensity of Precipitation --
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) 21609
NTSB Notification Source Regional Operations Center FTW
NTSB Notification Date Apr 13 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 27 2007 1:15PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office Dallas, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3022T
NTSB Number DFW07CA091
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 Cessna
Aircraft Model 320C
Aircraft Series Identifier --
Aircraft Serial Number 320C0022
Certified Max Gross Weight 5200
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours 5211
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name General Shelters of Texas S.B.Limited
Aircraft Owner Street Address 709 Southview Circle
Aircraft Owner City Center
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 75936
Operator is an individual? No
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? --
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code KGYI
Departure City Sherman
Departure State TX
Departure Country USA
Departure Time 1442
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code KTKI
Destination City McKinney
Destination State TX
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 3 2007 3:11PM
User who most recently changed record CASH
Since inspection or accident Time of Accident
Event Location Runway Number and Location 17
Runway Length 7000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --