Sunday, June 16, 2019

Loss of Control on Ground: Airdrome Aeroplanes Sopwith Pup, N1916Z, accident occurred November 26, 2018 at Rio Vista Municipal Airport (O88), Solano County, California

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Sacramento, California

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


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


https://registry.faa.gov/N1916Z



Location: Rio Vista, CA
Accident Number: GAA19CA075
Date & Time: 11/26/2018, 1230 PST
Registration: N1916Z 
Aircraft: Darren M. Vinelli Sopwith PUP
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

The pilot in the tailwheel-equipped airplane reported that during landing, the airplane encountered a variable crosswind gust and the left wing lifted. He was able to keep the airplane on the runway and established a landing roll. The ground speed was about 20 miles per hour and the airplane encountered another wind gust. The airplane weathervaned to the left and exited the left side of the runway, rolled into mud and nosed over.

The airplane sustained substantial damage to the rudder.

The pilot reported that the wind at the time of the accident was variable at 5 knots and gusting to 8 knots.

The METAR at the nearest airport was about 12 miles to the west of the accident site, and reported that about the time of the accident, the wind was out from 02 at 6 knots. The pilot landed the airplane on runway 25.

The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. 

Pilot Information

Certificate: Private
Age: 49, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Center
Other Aircraft Rating(s): None
Restraint Used: 4-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: 12/07/2017
Occupational Pilot: No
Last Flight Review or Equivalent: 11/21/2017
Flight Time:  (Estimated) 535 hours (Total, all aircraft), 79 hours (Total, this make and model), 459 hours (Pilot In Command, all aircraft), 17 hours (Last 90 days, all aircraft), 9 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Darren M. Vinelli
Registration: N1916Z
Model/Series: Sopwith PUP
Aircraft Category: Airplane
Year of Manufacture: 2017
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: 001
Landing Gear Type: Tailwheel
Seats: 1
Date/Type of Last Inspection: 04/28/2018, Condition
Certified Max Gross Wt.: 1200 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 78 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: Not installed
Engine Model/Series: O-290G
Registered Owner: On file
Rated Power: 125 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: KSUU, 62 ft msl
Distance from Accident Site: 12 Nautical Miles
Observation Time: 2058 UTC
Direction from Accident Site: 292°
Lowest Cloud Condition: Clear
Visibility:  7 Miles
Lowest Ceiling: None
Visibility (RVR): 
Wind Speed/Gusts: 6 knots /
Turbulence Type Forecast/Actual: /
Wind Direction: 20°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 30.15 inches Hg
Temperature/Dew Point: 17°C / 9°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Rio Vista, CA (O88)
Type of Flight Plan Filed: None
Destination: Rio Vista, CA (O88)
Type of Clearance: None
Departure Time: 1115 PST
Type of Airspace: Class G

Airport Information

Airport: Rio Vista Muni (O88)
Runway Surface Type: Asphalt
Airport Elevation: 22 ft
Runway Surface Condition: Dry
Runway Used: 25
IFR Approach: None
Runway Length/Width: 4199 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: 38.193333, -121.703611 (est)

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