Individually Owned: 150,657
Corporate Owned: 137,281
Baton Rouge Metropolitan, Ryan Airport
Aircraft Accident/Incident Report
Baton Rouge, Louisiana 70807
Friday, April 25, 2008 11:23 CDT
NTSB Narrative Summary Released at Completion of Accident
The private pilot was landing at the airport when the airplane's right main landing gear collapsed. A preexisting fracture with corrosion was discovered on the right main landing gear torque knee. The main landing gear upper and lower torque knees require an inspection every 1,000 hours by airworthiness directive. Compliance with the airworthiness directive was not maintained and the airplane was allowed to operate without an inspection.
NTSB Probable Cause Narrative
Structural failure of the right main landing gear torque knee. A contributing factor was the failure to inspect the torque knee at the designated interval.
Event Information
| Type of Event | Accident |
| Event Date | 4/25/2008 |
| Event Day of the Week | Friday |
| Time of Event | 1123 |
| Event Time Zone | Central Daylight Time |
| Event City | Baton Rouge |
| Event State | LOUISIANA |
| Event Country | -- |
| Zipcode of the event site | 70807 |
| Event Date Year | 2008 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 303158N |
| Event Location Longitude | 0910859W |
| Event Location Airport | BATON ROUGE METROPOLITAN, RYAN |
| Event Location Nearest Airport ID | BTR |
| 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 | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1113 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | BTR |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1800 |
| Lowest Non-Ceiling Height | 1800 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | 19 |
| Wind Direction (degrees magnetic) | 120 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.01 |
| Density Altitude (feet) | -- |
| 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 | 6 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23925 |
| NTSB Notification Source | FAA FSDO, Baton Rouge |
| NTSB Notification Date | Apr 25 2008 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jul 30 2008 9:00AM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Baton Rouge |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N21SP |
| NTSB Number | DFW08TA128 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | VFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Beech |
| Aircraft Model | C90 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | LJ-630 |
| Certified Max Gross Weight | 9500 |
| 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 | 8 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | -- |
| ELT Type | -- |
| Aircraft Owner Name | SOUTHWEST AVIATION SPECIALTIES LLC |
| Aircraft Owner Street Address | 8720 JACK BATES AVE |
| Aircraft Owner City | TULSA |
| Aircraft Owner State | OK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 74132 |
| Operator is an individual? | No |
| Operator Name | United States Marine Corps |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| 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 | -- |
| Departure Point Same as Event | Yes |
| Departure Airport Code | BTR |
| Departure City | Baton Rouge |
| Departure State | LA |
| Departure Country | USA |
| Departure Time | 1030 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | BTR |
| Destination City | BATON ROUGE |
| Destination State | LA |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jul 14 2008 12:13PM |
| User who most recently changed record | GAMW |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 13 |
| Runway Length | 7004 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |