# Accident 20120409006589A: Ayres Corporation S2R-T15, Lakin, KS, April 9, 2012

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 9, 2012, 09:31 local time
- Place: Lakin, KS
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Agricultural (Part 137)
- Operator: 71TG
- Location: 37.9772° N, 101.2033° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=37.9772&lon=-101.2033&mi=10
- Aircraft: N64DX, a cancelled registration (https://openairdocs.org/deregistered/N64DX-2014-07-21) (OpenAirDocs)
- Registry model: Ayres S2R-T15 (registry code 0970105, https://openairdocs.org/model/ayres-s2r-t15) (OpenAirDocs)
- Registry engine: Pratt & Whitney PT6A series (registry code 52032, https://openairdocs.org/engine/pratt-whitney-pt6a-series) (OpenAirDocs)
- Reported make and model: AYRES CORPORATION S2R-T15
- Reported engine: P&W PT6A SER
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Airline transport, flight instructor
- Pilot flight hours: 3,000 total, 100 in this make and model, 150 in the last 90 days
- NTSB investigation: [NTSB CEN12LA236](https://openairdocs.org/ntsb/CEN12LA236) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20120409006589A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

THE AGRICULTURAL AIRCRAFT'S FUEL AND CHEMICAL LOAD WERE EACH APPROXIMATELY 2/3 FULL. TAKE-OFF WAS NORMAL, WITH A LIGHT WIND, AND THE  PILOT TRANSITIONED TO AND SURVEYED THE FIELD AT APPROXIMATELY 400 FEET AGL, WHILE DETERMINING THE BEST WAY TO ACCOMPLISH THE TASK AND AVOID OBSTRUCTIONS.  HE WAS AWARE OF THE CELL PHONE TOWER AT ONE SIDE OF THE FIELD AND CHOSE HIS PATTERN WORK SO HE WOULD FINISH THE FIELD WHEN WORKING CLOSE TO THE TOWER.  THIS WOULD RESULT IN MAXIMUM PERFORMANCE OF THE AIRPLANE WHILE MANEUVERING CLOSE TO THE TOWER.  THE PILOT ALSO STATED HE WANTED TO VERIFY WHERE THE GUY WIRES ACTUALLY WERE AND WHETHER THEY EXTENDED INTO THE FIELD.  HE MADE A DOWN WIND TURN TO GO AROUND THE TOWER TO ESTABLISH THE GPS FIX OF POINT "C".  (POINT "C" FIX, WHEN INPUTTED IN THE GPS, DETERMINES THE FINISH OF THE FIELD SPRAY AREA.  FIX "A" AND "B" DETERMINE THE BEGINNING OF THE SPRAY AREA).EVIDENCE INDICATES THE PILOT INCREASED THE ANGLE OF BANK DURING A TURN THAT EXCEEDED THE CRITICAL ANGLE OF ATTACK.  THE SUBSEQUENT STALL RESULTED IN THE AIRCRAFT STRIKING A TOWER GUY WIRE AND IMPACTING THE GROUND.  THE AIRCRAFT WAS SUBSTANIALLLY DAMAGED AND THE PILOT SUSTAINED SERIOUS INJURIES.

## 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 CEN12LA236](https://openairdocs.org/ntsb/CEN12LA236), Apr 9, 2012: Ayres S2R-T15 (N64DX), Lakin, KS, substantial damage. Probable cause: The pilot did not maintain sufficient airspeed while maneuvering, which resulted in an aerodynamic stall at a low altitude.

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.

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