Sunday, September 22, 2019

Landing Gear Collapse: Cessna 310R, N372WP; accident occurred March 22, 2018 at Charles B. Wheeler Downtown Airport (KMKC), Kansas City, Missouri

The National Transportation Safety Board did not travel to the scene of this accident.

Federal Aviation Administration / Flight Standards District Office; Kansas City, Missouri

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Kansas City, MO
Accident Number: CEN18LA128
Date & Time: 03/22/2018, 1800 CDT
Aircraft: CESSNA 310R
Aircraft Damage: Substantial
Defining Event: Landing gear collapse
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On March 22, 2018, about 1800 central daylight time, a Cessna 310 airplane, N372WP, sustained substantial damage when the right landing gear collapsed during landing roll at the Charles B. Wheeler Downtown Airport (MKC), Kansas City, Missouri. The pilot and passenger were not injured. The airplane was owned and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91 on a personal flight. Visual meteorological conditions prevailed for the flight, which was on an instrument flight rules flight plan. The flight departed from the Shreveport Downtown Airport, (DTN), Shreveport, Louisiana, with MKC as the destination airport.

The pilot reported that the landing gear position lights were all green during the approach and the landing was normal. During landing rollout, the right landing gear collapsed. A witness who observed the landing stated that the landing appeared normal and was not a hard landing. After the landing gear collapsed, the airplane skidded for about 1,200 to 1,500 ft and veered off the side of the runway, which resulted in substantial damage to the horizontal stabilizer and elevator.

The airplane's landing gear parts that were broken during the accident were shipped to the National Transportation Safety Board's Materials Laboratory for examination. The parts that were examined included: 1) end fitting bolt with a mating spacer, 2) end fitting assembly with mating adjusting screw, 3) bellcrank assembly bolt with mating nut, and 4) part of a flange.

The examination of the fracture surfaces of the end fitting assembly mating adjustment screw, the bellcrank assembly bolt, and the flange revealed that the fracture features were consistent with overstress. The failure mode of the end fitting bolt could not be determined due to smearing and secondary damage to the fracture surface.

The examination of the fracture surfaces of the end fitting bolt with a mating spacer revealed that it had separated through a thread root on the end of the bolt. The bolt was bent, which prevented easy removal of the mating spacer and bushing. The fracture surface was approximately flat, but significant smearing and secondary damage obscured the finer features. Two crescent-shaped marks on the fracture surface aligned with mounded material on the sides, which was consistent with impact damage. The exact cause of the end fitting bolt separation could not be determined.

Pilot Information

Certificate: Airline Transport
Age: 57, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 01/05/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time:  11987 hours (Total, all aircraft), 1890 hours (Total, this make and model), 21 hours (Last 90 days, all aircraft), 8 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: CESSNA
Registration: N372WP
Model/Series: 310R
Aircraft Category: Airplane
Year of Manufacture: 1977
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 310R0904
Landing Gear Type: Retractable - Tricycle
Date/Type of Last Inspection:  Annual
Certified Max Gross Wt.: 5501 lbs 
Time Since Last Inspection:
Engines: 2 Reciprocating
Airframe Total Time: 6362 Hours at time of accident
Engine Manufacturer: Continental
ELT: C126 installed, not activated
Engine Model/Series: IO-520-MB
Registered Owner: On file
Rated Power: 285 hp
Operator: On file
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: MKC, 756 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1654 CDT
Direction from Accident Site: 0°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 6 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 120°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.11 inches Hg
Temperature/Dew Point: 20°C / 2°C
Precipitation and Obscuration: No Precipitation
Departure Point: Shreveport, LA (DTN)
Type of Flight Plan Filed: IFR
Destination: Kansas City, MO (MKC)
Type of Clearance: IFR
Departure Time: 1430 CDT
Type of Airspace: Class D

Airport Information

Airport: Downtown Air (MKC)
Runway Surface Type: Concrete
Airport Elevation: 756 ft
Runway Surface Condition: Dry
Runway Used: 19
IFR Approach: None
Runway Length/Width: 6827 ft / 150 ft
VFR Approach/Landing: Full Stop

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 39.123056, -94.592778

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