# N4025Q: 1981 Ayres S2R-R1820, registration cancelled 2012-11-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 15, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Ayres S2R-R1820](https://openairdocs.org/model/ayres-s2r-r1820) (registry code 0970215)
- Engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020)
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW) (OpenAirDocs)
- Serial number: R1820-019DC
- Year built: 1981
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: August 20, 1981
- Certificate issued: May 14, 1990
- Last registry action: June 26, 1993
- Mode S code: A4B725
- Owners when cancelled: [Childers William W DBA](https://openairdocs.org/faa-owner/CHILDERS%20WILLIAM%20W%20DBA), [Childers Flying Service](https://openairdocs.org/faa-owner/CHILDERS%20FLYING%20SERVICE)
- Location: [Smithville, GA](https://openairdocs.org/faa-place/GA/Smithville)
- Owner type: Individual
- Owner's area on the map: 31.8954° N, 84.2480° W: Placed by OpenAirDocs at the center of ZIP code 31787, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4025Q
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4025Q
- Page: https://openairdocs.org/deregistered/N4025Q-2012-11-15

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Ayres S2R-R1820: https://openairdocs.org/model/ayres-s2r-r1820.md

## 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 ATL90DKG05](https://openairdocs.org/ntsb/ATL90DKG05), Aug 4, 1990: Ayres Bull Thrush (N4025Q), Americus, GA, destroyed. Probable cause: FAILURE OF THE ENGINE MAIN OIL LINE WHICH ALLOWED THE ENGINE OIL TO BE IGNITED BY THE HOT ENGINE.

## 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 19900804033729A](https://openairdocs.org/incident/19900804033729A), Aug 4, 1990: Ayres S2RR1820 (N4025Q), Americus, GA, Destroyed. Smelled burning rubber on spray run,returned to base. Fire erupted landing. Rubber oil line burst,leaked on exhaust

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