# Accident 19990824013439A: Ayres S2RG10, Stanfield, AZ, August 24, 1999 - Type: FAA accident report (Accident/Incident Data System), as reported - Date: August 24, 1999, 07:30 local time - Place: Stanfield, AZ - Damage: Substantial damage - Phase of flight: To Aborted (Fixed Wing) - Operating rules: Agricultural (Part 137) - Location: 32.8794° N, 111.9628° W: Placed by OpenAirDocs: center of Stanfield, AZ, within about 6 miles (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=32.8794&lon=-111.9628&mi=10 - Aircraft: N20523, registered now (https://openairdocs.org/aircraft/N20523) (OpenAirDocs) - Registry model: Ayres S2R-G10 (registry code 0970217, https://openairdocs.org/model/ayres-s2r-g10) (OpenAirDocs) - Registry engine: AiResearch TPE331 series (registry code 01517, https://openairdocs.org/engine/airesearch-tpe331-series) (OpenAirDocs) - Reported make and model: AYRES S2RG10 - Fatal injuries: 0 - NTSB investigation: [NTSB LAX99LA281](https://openairdocs.org/ntsb/LAX99LA281) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/19990824013439A ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. ACFT STRUCK A BERM ON TAKE-OFF AND WENT INTO AN ALFALFA FIELD, OTHER CIRCUMSTANCES ARE UNKNOWN. (.19) ON MARCH 24, 1999, AT 0248 HOURS MOUNTAIN STANDARD TIME, AN AYRES CORPORATION S2R-G10, N20523, COLLIDED WITH TERRAIN AT THE END OF THE RUNWAY AT A PRIVATE AIRSTRIP NEAR STANFIELD, ARIZONA. THE AIRPLANE, OPERATED BY CROP FIRST AVIATION INC., STANFIELD, WAS SUBSTANTIALLY DAMAGED. THE COMMERCIAL PILOT SUSTAINED MINOR INJURIES. THE LOCAL AERIAL APPLICATION FLIGHT, CONDUCTED UNDER THE PROVISIONS OF 14 CFR PART 137, WAS ORIGINATING AT THE TIME OF THE ACCIDENT. NIGHT VISUAL METEOROLOGICAL CONDITIONS PREVAILED AND NO FLIGHT PLAN WAS FILED. THE PILOT REPORTED THAT THE PURPOSE OF THE FLIGHT WAS TO SPRAY A COTTON FIELD WITH INSECTICIDE. HE STATED THAT THE AIRCRAFT WAS LOADED WITH APPROXIMATELY 430 GALLONS OF CHEMICALS AND ABOUT 110 GALLONS OF FUEL. HE STATED THAT HE USED THE ENTIRE LENGTH OF THE RUNWAY, 2,200 FEET, FOR HIS TAKEOFF ROLL. THE PILOT REPORTED THAT HE REALIZED HE WAS NOT GOING BE ABLE TO TAKEOFF BEFORE REACHING THE END OF THE RUNWAY AND HE ATTEMPTED TO SLOW THE AIRPLANE. THE AIRCRAFT'S LANDING GEAR IMPACTED A DITCH AND BERM THAT ROSE ABOUT 6 TO 8 FEET ABOVE THE RUNWAY SUR FACE. THE PILOT STATED THAT THE AIRCRAFT WAS JUST BECOMING AIRBORNE AT THE TIME OF IMPACT. THE PILOT STATED THAT HE HAD NOT EXPERIENCED ANY MECHANICAL PROBLEMS WITH THE AIRCRAFT OR ENGINE PRIOR TO THE ACCIDENT. HE REPORTED THAT THE ENGINE SOUNDED NORMAL DURING THE TAKEOFF ROLL. THREE GROUND CREWMEMBERS REPORTED THAT THEY DIDN'T NOTICE ANY UNUSUAL NOISES FROM THE ENGINE, BUT THEY NOTED THAT IT SEEMED LIKE A "SLOW ACCELERATION." (-23) WHILE ATTEMPTING TO TAKE OFF FOR NIGHT TIME SPRAY OPS THE AIRCRAFT TAIL WHEEL STRUCK AN EMBANKMENT AT THE DEPARTURE END OF THE RUNWAY CAUSING AIRCRAFT TO PITCH DOWN AND IMPACT IN AN ALFALFA FIELD. ## The NTSB's investigation of this event (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB LAX99LA281](https://openairdocs.org/ntsb/LAX99LA281), Aug 24, 1999: Ayres S2R-G10 (N20523), Stanfield, AZ, substantial damage. Probable cause: The pilot's delay in aborting the takeoff after noting sluggish acceleration during the takeoff roll, which resulted in a runway overrun. ## Other reports on N20523 (2) Matched to the same aircraft by N-number and date. - [Incident 20180412014719I](https://openairdocs.org/incident/20180412014719I), Apr 12, 2018: Ayres Corporation S2R-G10 (N20523), Lorida, FL, Minor damage. On Thursday April 12, 2018 at approximately 1650 the aircraft took off from Lykes brother field (8FD5) in basinger Florida. Once air born, the aircraft… - [Incident 20031004025729I](https://openairdocs.org/incident/20031004025729I), Oct 4, 2003: Ayres S2RG10 (N20523), Maricopa, AZ, Minor damage. (-23) The pilot stated that the loaded agricultural aircraft lifted off the airstrip then settled back to the surface and damaged the landing gear.… From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.