Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
Aviation Accident Data Summary - National Transportation Safety Board: https://app.ntsb.gov/pdf
http://registry.faa.gov/N987SL
Location: Wolcott, CO
Accident Number: CEN14CA318
Date & Time: 06/16/2014, 1315 MDT
Registration: N987SL
Aircraft: MEYER GEOFFREY A GOAT
Aircraft Damage: Substantial
Defining Event: Loss of engine power (total)
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal
Analysis
While flying a single engine airplane VFR at 12,500 feet MSL, the pilot noticed a drop in oil pressure and smelled burning oil. He immediately turned back toward an airport, declared an emergency, and reduced the power to idle. During the emergency descent, the pilot encountered very strong winds out of the south and maneuvered the airplane toward a golf course fairway and secured the engine by pulling the mixture to idle cut off position. The airplane touched down in a strong crosswind on the fairway and the initial rollout was under control, but the airplane rolled over a very large landscape bump (approximately 4 feet tall) in the fairway. The airplane became airborne after the bump and the left wing rose rapidly upon the second touchdown. The airplane was heading toward a small pond and the pilot applied brake pressure, but the large tundra tires were sliding on the wet grass. The pilot decided to intentionally ground loop the airplane to avoid sliding into the pond. The right wing contacted the ground causing substantial damage to the wing. The airplane came to rest near the edge of the pond and the pilot and passenger exited through the pilot side door with no injuries. After the accident the airplane was examined and a standard fitting on the accessory section of the engine which leads to the oil pressure transducer was found sheared completely, which would have caused an instantaneous and complete loss of oil pressure and a loss of most of the engine oil in flight. There was no collateral damage or evidence in or around the AN fitting to determine the reason for failure.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The failure of an oil line leading to the oil pressure transducer which resulted in oil starvation and subsequent loss of engine power.
Findings
Aircraft
Recip eng oil sys - Failure (Cause)
Oil - Fluid level (Cause)
Environmental issues
Crosswind - Effect on operation
Wet surface - Contributed to outcome
Rough terrain - Contributed to outcome
Factual Information
History of Flight
Maneuvering
Loss of engine power (total) (Defining event)
Pilot Information
Certificate: Airline Transport
Age: 38, 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 1 Without Waivers/Limitations
Last FAA Medical Exam: 06/10/2014
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/10/2014
Flight Time: (Estimated) 10000 hours (Total, all aircraft), 25 hours (Total, this make and model), 7000 hours (Pilot In Command, all aircraft), 1 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: MEYER GEOFFREY A
Registration: N987SL
Model/Series: GOAT NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 2006
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 1028KCM
Landing Gear Type: Unknown
Seats: 4
Date/Type of Last Inspection: 10/31/2013, Annual
Certified Max Gross Wt.: 2500 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 150.9 Hours
Engine Manufacturer: Lycoming
ELT: Installed, not activated
Engine Model/Series: IO-540
Registered Owner: RAGING THERMAL SKY SPORTS LLC
Rated Power: 300 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:
Observation Time:
Distance from Accident Site:
Direction from Accident Site:
Lowest Cloud Condition: Clear
Temperature/Dew Point: 24°C / 7°C
Lowest Ceiling: None
Visibility: 10 Miles
Wind Speed/Gusts, Direction: 20 knots/ 30 knots, 180°
Visibility (RVR):
Altimeter Setting: 30.01 inches Hg
Visibility (RVV):
Precipitation and Obscuration:
Departure Point: Glenwood, CO (GWS)
Type of Flight Plan Filed: None
Destination: Boulder, CO (BDU)
Type of Clearance: None
Departure Time: 1020 MST
Type of Airspace: Class E
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: Unknown
Ground Injuries: N/A
Aircraft Explosion: Unknown
Total Injuries: 2 None
Latitude, Longitude: 39.701667, 106.676667 (est)
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