Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Riverdale, California 93656
Tuesady, July 28, 2009 11:00 PDT
NTSB Narrative Summary Released at Completion of Accident
During a spray pass the pilot detected a "hot smell," which prompted him to pull up out of the field to check his engine gauges. As everything appeared normal the pilot returned to the field to continue spraying operations. Upon re-entering the field the pilot reported that "…the engine changed sound." After pulling up out of the field a second time the pilot revealed that the engine began to slow down, followed by the emission of smoke from the exhaust system. The pilot made a successful forced landing in the field he was spraying; however, due to the wet field conditions it nosed over on its back, which resulted in substantial damage to the airplane. A post accident teardown examination revealed that the engine had failed as a result of a supercharger-blower failure. It also revealed that foreign object material was detected in the engine; however, it could not be determined if this was causal to the engine failure. The manufacturer recommends an overhaul time of between 600 to 1,000 hours for engines operated in aerial application operations. At the time of the accident the engine had accumulated a total of 835.27 hours since its most recent major overhaul.
NTSB Probable Cause Narrative
The partial loss of engine power due to the failure of the engine's supercharger-blower.
Event Information
| Type of Event | Accident |
| Event Date | 7/28/2009 |
| Event Day of the Week | Tuesday |
| Time of Event | 1100 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Riverdale |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 93656 |
| Event Date Year | 2009 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 362506N |
| Event Location Longitude | 1195707W |
| 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 | Weather Observation Facility |
| Time of the weather observation | 1056 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 180 |
| Weather Observation Facility ID | NLC |
| Elevation of weather observation facility | 232 |
| Distance of event from weather observation facility (units?) | 6 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 15000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 33 |
| Dew Point at event time (in degress fahrenheit) | 12 |
| Wind Direction (degrees magnetic) | 310 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.81 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26042 |
| NTSB Notification Source | FAA NWR Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 28 2009 11:34AM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8741H |
| NTSB Number | WPR09LA373 |
| 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 | GRUMMAN |
| Aircraft Model | G164 |
| Aircraft Series Identifier | A |
| Aircraft Serial Number | 1508 |
| Certified Max Gross Weight | 7550 |
| 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 | 1 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jul 3 2009 12:00AM |
| Airframe hours since last inspection | 43 |
| Airframe Hours | 9280 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Kennys Crop Dusting Inc. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Caruthers |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 93609 |
| Operator is an individual? | No |
| Operator Name | Kennys Crop Dusting Inc. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Caruthers |
| Operator State | CA |
| Operator Country | USA |
| Operator Zip code | 93609 |
| Operator Code | PXAG |
| 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 | PXAG366H |
| 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 | -- |
| Departure City | Rasin City |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | 1030 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | -- |
| Destination City | Riverdale |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Sep 11 2009 8:52PM |
| User who most recently changed record | stam |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |