Friday, March 13, 2020

Rockwell International 112B Commander, N377SB: Accident occurred February 15, 2020 at Knoxville Downtown Island Airport (KDKX), Knox County, Tennessee

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

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Nashville, Tennessee

Aviation Accident Preliminary Report - National Transportation Safety Board:

Location: Knoxville, TN
Accident Number: ERA20LA109
Date & Time: 02/15/2020, 1430 EST
Registration: N377SB
Aircraft: Rockwell 112
Injuries: 1 Minor, 1 None
Flight Conducted Under: Part 91: General Aviation - Personal

On February 15, 2020, about 1430 eastern standard time, a Rockwell International 112B, N377SB, was substantially damaged during a runway excursion while landing at the Knoxville Downtown Island Airport (DKX), Knoxville, Tennessee. The private pilot sustained minor injuries and the passenger was not injured. The airplane was operated under the provisions of Title 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed for the flight that originated about 1330, from Bowman Field Airport, Louisville, Kentucky.

The pilot stated that after departure he proceeded to DKX which had calm winds, and he entered an extended left base leg of the airport traffic pattern for runway 8. The pilot turned onto the final approach leg of the airport traffic pattern and reported a normal landing. About 1 or 2 seconds after the airplane began to slow, it "swerved violently to the left," which the pilot described as if the flight had suddenly encountered a 20+ knot crosswind. He applied right rudder input but that did not correct the left turning tendency. The airplane departed the runway onto grass, where he attempted to slow the airplane. The airplane then veered again to the left and this time he had no rudder authority. He instructed the passenger to brace for impact and reported coming to an abrupt stop. When the pilot exited the airplane he noted that the left main landing gear tire was deflated.

According to the Federal Aviation Administration inspector who examined the accident site and airplane, rubber transfer on the runway that was consistent from the left tire began about 1,900 ft from the approach end of the runway. After exiting the runway, the airplane traveled about 600 ft, impacted a water drainage ditch, and the nose landing gear collapsed. The left main landing gear tire exhibited a flat spot through the tread.

The airplane was recovered for further examination of the brake system. 

Aircraft and Owner/Operator Information

Aircraft Make: Rockwell
Model/Series: 112 B
Aircraft Category: Airplane
Amateur Built: No
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: TYS, 979 ft msl
Observation Time: 1453 EST
Distance from Accident Site:
Temperature/Dew Point: 8°C / -4°C
Lowest Cloud Condition:
Wind Speed/Gusts, Direction: Calm / ,
Lowest Ceiling: Broken / 25000 ft agl
Visibility:  10 Miles
Altimeter Setting: 30.33 inches Hg
Type of Flight Plan Filed: None
Departure Point: Louisville, KY (LOU)
Destination: Knoxville, TN (DKX)

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries:1 None
Aircraft Fire:None
Ground Injuries:N/A 
Aircraft Explosion: None
Total Injuries: 1 Minor, 1 None
Latitude, Longitude: 35.963333, -83.868333

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