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
Investigation Docket - National Transportation Safety Board:
Angle of Attack AEROnautics LLC
Location: Butte, Montana
Accident Number: WPR20CA183
Date & Time: June 15, 2020, 12:30 Local
Registration: N87395
Aircraft: Cessna 310
Aircraft Damage: Substantial
Defining Event: Landing gear collapse
Injuries: 1 None
Flight Conducted Under: Part 91: General aviation - Personal
Analysis
While on final approach to land, about 150 ft above the ground, the pilot maneuvered and descended the airplane away from a bird. The pilot then realized that he was on a lower approach path to the runway after he observed an airport perimeter fence, but felt that he could still perform a safe landing and increased engine power to continue the approach. The airplane’s left main landing gear then struck a fence post and the pilot initiated a go-around to return to the departure airport. After unsuccessful attempts to verify the left main landing gear was extended and locked, he initiated a landing with full flaps and in a right-wing low attitude. As the airplane touched down, the left main landing gear collapsed, the airplane veered left, exited the runway, and the left wing struck a runway sign. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's failure to maintain clearance from a fence post during final approach which resulted in a damage to the left main landing gear, and its subsequent collapse during landing.
Findings
Personnel issues Monitoring environment - Pilot
Aircraft Descent/approach/glide path - Not attained/maintained
Environmental issues Pole - Effect on operation
Aircraft Main landing gear - Damaged/degraded
Factual Information
History of Flight
Landing Landing gear collapse (Defining event)
Landing Runway excursion
Landing Collision with terr/obj (non-CFIT)
Pilot Information
Certificate: Commercial; Flight instructor
Age: 62, Male
Airplane Rating(s): Single-engine land; Multi-engine land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: Unknown
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane multi-engine; Airplane single-engine; Instrument airplane
Toxicology Performed: No
Medical Certification: Class 2 With waivers/limitations
Last FAA Medical Exam: June 9, 2020
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time: (Estimated)
Aircraft and Owner/Operator Information
Aircraft Make: Cessna
Registration: N87395
Model/Series: 310 R
Aircraft Category: Airplane
Year of Manufacture: 1975
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 310R0543
Landing Gear Type: Retractable - Tricycle
Seats: 6
Date/Type of Last Inspection: Unknown
Certified Max Gross Wt.: 5501 lbs
Time Since Last Inspection:
Engines: 2 Reciprocating
Airframe Total Time:
Engine Manufacturer: Continental
ELT:
Engine Model/Series: IO 520 SERIES
Registered Owner:
Rated Power: 285 Horsepower
Operator:
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual (VMC)
Condition of Light: Day
Observation Facility, Elevation: KBTM,5533 ft msl
Distance from Accident Site: 1 Nautical Miles
Observation Time: 11:53 Local
Direction from Accident Site: 347°
Lowest Cloud Condition: Clear
Visibility: 10 miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 4 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction:
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.02 inches Hg
Temperature/Dew Point: 13°C / -3°C
Precipitation and Obscuration: No
Obscuration; No Precipitation
Departure Point: Twin Bridges, MT (7S1)
Type of Flight Plan Filed: Unknown
Destination: Butte, MT (BTM)
Type of Clearance: Unknown
Departure Time: 09:00 Local
Type of Airspace: Class E
Airport Information
Airport: Bert Mooney BTM
Runway Surface Type: Asphalt
Airport Elevation: 5550 ft msl
Runway Surface Condition: Dry
Runway Used: 33
IFR Approach: None
Runway Length/Width: 9000 ft / 150 ft
VFR Approach/Landing: Full stop
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 45.954723,-112.497497(est)
No comments:
Post a Comment