# N4010H: Ayres S2R-600

- Status: Valid registration
- Airframe: [Ayres S2R-600](https://openairdocs.org/model/ayres-s2r-600) (registry code 0970102, 1 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2527R
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: March 5, 1979
- Certificate issued: August 4, 2023
- Expires: August 31, 2030
- Mode S code: A4B2B8
- Registered owner: [Crop Doctor Aviation Inc](https://openairdocs.org/faa-owner/CROP%20DOCTOR%20AVIATION%20INC)
- Location: [Hill City, KS](https://openairdocs.org/faa-place/KS/Hill%20City)
- Owner type: Corporation
- Owner's area on the map: 39.3700° N, 99.8304° W: Placed by OpenAirDocs at the center of ZIP code 67642, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4010H
- Page: https://openairdocs.org/aircraft/N4010H

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Pratt & Whitney R1340 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Ayres S2R-600)

None in force.

### Matched by engine (Pratt & Whitney R1340 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (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 CHI91DTG07](https://openairdocs.org/ntsb/CHI91DTG07), Aug 7, 1991: Ayres S2R (N4010H), Drayton, ND, substantial damage. Probable cause: MISJUDGED CLEARANCE BY THE PILOT. A FACTOR RELATED TO THE ACCIDENT IS OVERCONFIDENCE IN PERSONAL ABILITY.

## FAA accident and incident reports (1)

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.

- [Accident 19910807032539A](https://openairdocs.org/incident/19910807032539A), Aug 7, 1991: Ayres S2RR1340REST (N4010H), Drayton, ND, Substantial damage. Struck ground in sugar beet field while flying under wires on a spray run.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Ayres S2R-600 aircraft: https://openairdocs.org/model/ayres-s2r-600/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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