Sunday, August 26, 2018

STOL King, N268CR: Accident occurred March 22, 2017 at Bozeman Yellowstone International Airport (KBZN), Bozeman, Gallatin County, Montana

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

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Helena, Montana

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdfg

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N268CR

Location: Bozeman, MT
Accident Number: WPR17LA080
Date & Time: 03/22/2017, 1130 MST
Registration: N268CR
Aircraft: MAXCY CHRISTOPHER L STOL KING
Aircraft Damage: Substantial
Defining Event: Landing gear collapse
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On March 22, 2017, about 1130 mountain standard time, an experimental, amateur-built, Christopher L. Maxcy STOL King airplane, N268CR, sustained substantial damage during the landing roll at the Bozeman Yellowstone International Airport (BZN), Bozeman, MT, following a landing gear collapse. The private pilot was not injured. The airplane was registered and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no flight plan was filed for the personal, local flight which departed about 1040.

The pilot reported that just after touchdown, the tail-wheeled airplane immediately veered left, and he counteracted with right rudder and a little power, but was unable to maintain direction control of the airplane. The airplane subsequently ground looped and the right main landing gear collapsed, resulting in the outboard portion of the right wing striking the runway. The airplane came to rest off the east side of the runway. Near the time of the accident, the winds were reported as variable at 3 knots.

The high-wing airplane was designed for short take-off and landing (STOL) performance. It's fuselage was composed of a welded steel frame with an extended conventional landing gear.

Postaccident examination of the airplane by a Federal Aviation Administration inspector revealed that the right wing was bent upwards about mid-span and was substantially damaged. Additionally, the right landing gear assembly had collapsed under the airplane.

The owner and builder of the airplane stated that he had experienced a previous incident where the landing gear strut was bent during a landing, and he replaced it with a heavier duty version. He further stated that the landing gear design was not strong enough due to its long length and the angles of the gear.

Pilot Information

Certificate: Private
Age: 49, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 04/18/2016
Occupational Pilot: No
Last Flight Review or Equivalent: 04/08/2016
Flight Time:  (Estimated) 279 hours (Total, all aircraft), 144 hours (Total, this make and model), 144 hours (Pilot In Command, all aircraft), 8 hours (Last 90 days, all aircraft), 3 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: MAXCY CHRISTOPHER L
Registration: N268CR
Model/Series: STOL KING NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 2010
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: 4
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 04/26/2016, Annual
Certified Max Gross Wt.: 1700 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 171.29 Hours at time of accident
Engine Manufacturer: LYCOMING
ELT: C91A installed, not activated
Engine Model/Series: O-320-A2B
Registered Owner: On file
Rated Power: 150 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: BZN, 4473 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1156 MST
Direction from Accident Site: 143°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts:  Light and Variable /
Turbulence Type Forecast/Actual: /
Wind Direction: Variable
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 29.85 inches Hg
Temperature/Dew Point: 12°C / 4°C
Precipitation and Obscuration:

No Obscuration; No Precipitation

Departure Point: Bozeman, MT (BZN)
Type of Flight Plan Filed: None
Destination: Bozeman, MT (BZN)
Type of Clearance: VFR
Departure Time: 1040 MST
Type of Airspace: Class D

Airport Information

Airport: BOZEMAN YELLOWSTONE INTL (BZN)
Runway Surface Type: Asphalt
Airport Elevation: 4473 ft
Runway Surface Condition: Dry
Runway Used: 21
IFR Approach: None
Runway Length/Width: 2650 ft / 75 ft
VFR Approach/Landing: Full Stop; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  45.777500, -111.151944 (est)

NTSB Identification: WPR17LA080
14 CFR Part 91: General Aviation
Accident occurred Wednesday, March 22, 2017 in Bozeman, MT
Aircraft: MAXCY CHRISTOPHER L STOL KING, registration: N268CR
Injuries: 1 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On March 22, 2017, about 1130 mountain daylight time, an experimental, amateur-built, Maxcy Stol King airplane, N268CR, sustained substantial damage during the landing roll at the Bozeman Yellowstone International Airport (BZN), Bozeman, MT, following a landing gear collapse. The airplane was registered and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91. The private pilot, the sole person aboard the airplane, was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the personal, local flight which originated about 1040. 

The pilot reported that just after touchdown, the airplane veered left and the right main landing gear collapsed, resulting in the right wing striking the runway.

Postaccident examination of the airplane revealed that the right wing was bent upwards and was substantially damaged. The wreckage was transported to a secure location for further examination.

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