Individually Owned: 150,657
Corporate Owned: 137,281
Hamilton City Airport
Aircraft Accident/Incident Report
Glenn, California 95943
Tuesady, May 18, 2010 16:30 PDT
NTSB Narrative Summary Released at Completion of Accident
While on approach to spray a field, the pilot observed smoke emanating from the engine compartment. He set up for an emergency landing to a road. During the landing roll, the airplane veered off the road and struck power poles. During a postaccident examination of the engine, no mechanical anomalies were found that would have precluded normal operation. The manufacturer noted that the overall condition of the engine exhibited corrosion and heat erosion. The fuel nozzles were covered in a soot and soil combination. When flow tested, the fuel nozzles exceeded the parameters in the component maintenance manual test procedures. The manufacturer stated that the out-of-limit condition may cause hot-section deterioration over time but would not have prevented normal engine operation. The compressor turbine guide vane ring was examined, and blade fractures from overstress were found, along with chipping and flaking of the coating adjacent to the fracture surfaces.
NTSB Probable Cause Narrative
Loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
Event Information
| Type of Event | Accident |
| Event Date | 5/18/2010 |
| Event Day of the Week | Tuesday |
| Time of Event | 1630 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Glenn |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 95943 |
| Event Date Year | 2010 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 393724N |
| Event Location Longitude | 1220212W |
| Event Location Airport | Hamilton City |
| Event Location Nearest Airport ID | PVT |
| 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 | Weather Observation Facility |
| Time of the weather observation | 1454 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 360 |
| Weather Observation Facility ID | RBL |
| Elevation of weather observation facility | 352 |
| Distance of event from weather observation facility (units?) | 40 |
| Time Zone of the weather observation | PDT |
| 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) | 18 |
| Dew Point at event time (in degress fahrenheit) | 6 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.18 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30331 |
| NTSB Notification Source | FAA AWP Regional Operations Ce |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Aug 7 2012 5:47PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N29254 |
| NTSB Number | WPR10LA247 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 137: Agricultural |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | AYRES |
| Aircraft Model | S2R |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | R1340-008DC |
| Certified Max Gross Weight | 6000 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 1 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Mar 12 2010 12:00AM |
| Airframe hours since last inspection | 18 |
| Airframe Hours | 8067 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Alaska Air Service LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Tillamook |
| Aircraft Owner State | OR |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 97141 |
| Operator is an individual? | No |
| Operator Name | Alaska Air Service LLC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Tillamook |
| Operator State | OR |
| Operator Country | USA |
| Operator Zip code | 97141 |
| Operator Code | -- |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Agriculture |
| 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) | Aerial Application |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | PVT |
| Departure City | Hamilton City |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | 1620 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | PVT |
| Destination City | Hamilton City |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 7 2012 5:46PM |
| User who most recently changed record | coos |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |