Individually Owned: 150,657
Corporate Owned: 137,281
Yuba County Airport
Aircraft Accident/Incident Report
Marysville, California 95901
Tuesady, May 5, 2009 17:41 PDT
NTSB Narrative Summary Released at Completion of Accident
An Ayers S2R crop duster entered a left base for the runway at 500-600 feet, then turned left for a 3/4 mile final. At the same time a Grumman G164B entered a long final for the same runway. Neither aircraft had a VHF radio on board and neither pilot had visually acquired the other airplane. As the Grumman crossed the approach end of the runway for landing, the Ayers impacted it from above and behind. Both airplanes crashed entangled onto the runway.
NTSB Probable Cause Narrative
The failure of both pilots to see and avoid the other airplane while making their final approach for landing.
Event Information
| Type of Event | Accident |
| Event Date | 5/5/2009 |
| Event Day of the Week | Tuesday |
| Time of Event | 1741 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Marysville |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 95901 |
| Event Date Year | 2009 |
| Event Date Month | 5 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 390552N |
| Event Location Longitude | 1213411W |
| Event Location Airport | Yuba County |
| Event Location Nearest Airport ID | KMYV |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1753 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | KMYV |
| Elevation of weather observation facility | 62 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 4500 |
| Sky/Lowest/Cloud Conditions | Few |
| 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) | 24 |
| Dew Point at event time (in degress fahrenheit) | 13 |
| Wind Direction (degrees magnetic) | 210 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 12 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.01 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| 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 | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26601 |
| NTSB Notification Source | FAA 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 | Feb 10 2010 6:09PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N40208 | N6617K |
| NTSB Number | WPR09LA228A | WPR09LA228B |
| Missing Aircraft Indicator | -- | -- |
| Federal Aviation Reg. Part | Part 137: Agricultural | Part 137: Agricultural |
| Type of Flight Plan filed | None | None |
| Flight plan Was Activated? | No | No |
| Damage | Substantial | Substantial |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | AYRES CORPORATION | GRUMMAN ACFT ENG COR-SCHWEIZER |
| Aircraft Model | S2R-T34 | G-164B |
| Aircraft Series Identifier | -- | -- |
| Aircraft Serial Number | T34-023 | 392B |
| Certified Max Gross Weight | -- | -- |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | -- | -- |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | 1 |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 1 | 1 |
| Number of Engines | 1 | 1 |
| Fixed gear or retractable gear | Fixed | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour | Annual |
| Date of Last Inspection | Apr 23 2009 12:00AM | Apr 4 2009 12:00AM |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | 6508 | 21133 |
| ELT Installed | No | Unknown |
| ELT Activated | No | Unknown |
| ELT Aided Location of Event Site | No | Unknown |
| ELT Type | -- | -- |
| Aircraft Owner Name | G N DIBBLE INC | VINCE CROP DUSTERS INC |
| Aircraft Owner Street Address | PO BOX 2361 | PO BOX 265 |
| Aircraft Owner City | MARYSVILLE | BUTTONWILLOW |
| Aircraft Owner State | CA | CA |
| Aircraft Owner Country | USA | USA |
| Aircraft Owner Zipcode | 95901-2361 | 93206-0265 |
| Operator is an individual? | No | No |
| Operator Name | G N Dibble Inc | Onstott Dusters |
| Operator Same as Owner? | Yes | No |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | Yes | No |
| Operator Street Address | -- | -- |
| Operator City | Marysville | Yuba City |
| Operator State | CA | CA |
| Operator Country | USA | USA |
| Operator Zip code | 95901 | 95991 |
| Operator Code | -- | -- |
| Owner has at least one certificate | Yes - certificate holder | Yes - certificate holder |
| Other Operator of large aircraft? | No | No |
| Certified for Part 133 or 137 Operation | Agriculture | 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 | Aerial Application |
| Second Pilot on Board | No | No |
| Departure Point Same as Event | No | Yes |
| Departure Airport Code | -- | KMYV |
| Departure City | Nicolas | Marysville |
| Departure State | CA | CA |
| Departure Country | USA | USA |
| Departure Time | 1730 | -- |
| Departure Time Zone | PDT | PDT |
| Destination Same as Local Flt | crash at destination city | dest & departure same, accident can occur anywhere |
| Destination Airport Code | KMYV | KMYV |
| Destination City | Marysville | Marysville |
| Destination State | CA | CA |
| Destination Country | USA | USA |
| Specific Phase of Flight | -- | -- |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Feb 10 2010 6:09PM | Feb 10 2010 6:08PM |
| User who most recently changed record | coos | coos |
| Since inspection or accident | Last Inspection | Last Inspection |
| Event Location Runway Number and Location | 23 | 23 |
| Runway Length | 6006 | 6006 |
| Runway Width | 150 | 150 |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |