Casper/Natrona County Int'l Airport
Aircraft Accident/Incident Report

Casper, Wyoming 82604
Sunday, February 17, 2013 15:30 MST

NTSB Narrative Summary Released at Completion of Accident

After takeoff, while retracting the landing gear, the pilot heard an unusual banging sound on the right side of the airplane. The right main landing gear did not fully retract. The pilot cycled the gear. When he did not get an indication that the landing gear was in the down and locked position, he attempted to manually extend the gear; however, this was not successful. Upon landing, the airplane experienced a right main landing gear collapse. Postaccident examination of the airplane revealed that the right main gear bracket assembly had separated from its wing attachment point fitting. Further, the torque tube bearing would not rotate and lacked lubrication. It is likely that with no rotation in the bearing, the attachment fitting became worn with each cycle and reached a point where it could no longer support the load applied and separated.

NTSB Probable Cause Narrative

The separation of the right main gear bracket assembly from its wing attachment fitting due to lack of lubrication of the torque tube bearing.

Event Information

Type of Event Accident
Event Date 2/17/2013
Event Day of the Week Sunday
Time of Event 1530
Event Time Zone Mountain Standard Time
Event City Casper
Event State WYOMING
Event Country --
Zipcode of the event site 82604
Event Date Year 2013
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 425417N
Event Location Longitude 1062731W
Event Location Airport Casper/Natrona County Int'l
Event Location Nearest Airport ID CPR
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 5350
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Mountain Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID CPR
Elevation of weather observation facility 5350
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
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) 3
Dew Point at event time (in degress fahrenheit) -16
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 14
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.66
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KCPR 172153Z 34014KT 10SM BKN060 OVC075 03/M
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) 32669
NTSB Notification Source FAA Regional Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jan 7 2014 2:18PM
User who most recently changed record nixa
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4941J
NTSB Number WPR13LA132
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model T310R
Aircraft Series Identifier R
Aircraft Serial Number 310R0728
Certified Max Gross Weight 5500
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 100 Hour
Date of Last Inspection Feb 20 2013 12:00AM
Airframe hours since last inspection --
Airframe Hours 3770
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BRAVENEC DANIEL W
Aircraft Owner Street Address --
Aircraft Owner City THERMOPOLIS
Aircraft Owner State WY
Aircraft Owner Country USA
Aircraft Owner Zipcode 824439482
Operator is an individual? No
Operator Name BRAVENEC DANIEL W
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City THERMOPOLIS
Operator State WY
Operator Country USA
Operator Zip code 824439482
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 Yes
Departure Airport Code CPR
Departure City Casper
Departure State WY
Departure Country USA
Departure Time 1530
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code SHR
Destination City SHERIDAN
Destination State WY
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 18 2014 7:23PM
User who most recently changed record stam
Since inspection or accident --
Event Location Runway Number and Location 03
Runway Length 10165
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --