Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Spanish Fork, Utah 84660
Monday, May 7, 2007 11:46 MDT
NTSB Narrative Summary Released at Completion of Accident
The private pilot was on an instrument flight rules cross-country flight in visual meteorological conditions. According to witnesses near the accident site, the airplane was at a low altitude and trailing smoke. They described the airplane flying in a downwind and base type pattern to an open area where the airplane crashed. The witnesses reported the airplane impacted terrain while in a steep left-hand turn, and was fully engulfed by fire after impact. Shortly before crashing, the pilot reported that he had engine problems, and the airplane was on fire. Examination of the wreckage revealed a black, oil-like substance along the leading edge of the right stabilizer. In addition, heavy dark soot and oil deposits were on the bottom of the engine, starting below the number six cylinder in the area of the waste gate controller, and extending to the rear of the engine near the accessory case. The turbo charger waste gate is actuated by oil pressure supplied by an inlet oil supply hose and an oil return hose. Examination of the two Aeroquip metal-braided nonfire shielded hoses revealed that both were covered in a dark soot and an oil like substance. In addition, both oil lines appeared thermally damaged. The waste gate actuator inlet line was pressure tested, and a leak was noted between the hose collar and the B-nut on the actuator side of the hose. The oil return line was pressure tested, and multiple leaks were noted along a 14-inch section of the hose. The steel braided outer cover of the hose was removed, and the inside rubber hose was found deteriorated and oil soaked. A review of the maintenance log book records disclosed no specific entry related to the installation of nonfire shielded Aeroequip hoses. A representative from the engine manufacturer stated the steel braided Aeroequip hoses found on the accident airplane were not supplied by the engine manufacturer. Given the condition of the turbo charger oil lines and fittings, it is probable that a high pressure oil leak sprayed oil onto the hot engine and started an in-flight fire.
NTSB Probable Cause Narrative
An engine oil line leak and subsequent engine compartment fire while in cruise flight.
Event Information
| Type of Event | Accident |
| Event Date | 5/7/2007 |
| Event Day of the Week | Monday |
| Time of Event | 1146 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Spanish Fork |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84660 |
| Event Date Year | 2007 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 400245N |
| Event Location Longitude | 1113246W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Witness |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23588 |
| NTSB Notification Source | FAA-ROC |
| NTSB Notification Date | May 7 2007 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | May 28 2008 12:03PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Salt Lake City, Utah, FDSO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7343P |
| NTSB Number | SEA07FA124 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | Ground and In-flight |
| Aircraft Explosion | Ground |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | P210N |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | P21000006 |
| Certified Max Gross Weight | 4000 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Apr 1 2007 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 2732 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Webster Associates LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Seattle |
| Aircraft Owner State | WA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 98102 |
| Operator is an individual? | No |
| Operator Name | Craig L. Webster |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Seattle |
| Operator State | WA |
| Operator Country | USA |
| Operator Zip code | 98102 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | PUC |
| Departure City | PRICE |
| Departure State | UT |
| Departure Country | USA |
| Departure Time | 1132 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | TWF |
| Destination City | TWIN FALLS |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | Emergency descent/landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 30 2008 4:03PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |