# N4121G: 2000 Ayres S2R-T660, registration cancelled 2007-03-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 1, 2007
- Status when cancelled: Triennial form not returned
- Airframe: [Ayres S2R-T660](https://openairdocs.org/model/ayres-s2r-t660) (registry code 0970112)
- Engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52034)
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW) (OpenAirDocs)
- Serial number: T660-105
- Year built: 2000
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: January 19, 2001
- Certificate issued: January 24, 2001
- Last registry action: January 16, 2007
- Mode S code: A4DE10
- Owner when cancelled: [Wilco Flying Service LLC](https://openairdocs.org/faa-owner/WILCO%20FLYING%20SERVICE%20LLC)
- Location: [Dewitt, AR](https://openairdocs.org/faa-place/AR/Dewitt)
- Owner type: Corporation
- Owner's area on the map: 34.2746° N, 91.3233° W: Placed by OpenAirDocs at the center of ZIP code 72042, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4121G
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4121G
- Page: https://openairdocs.org/deregistered/N4121G-2007-03-01

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-T660: https://openairdocs.org/model/ayres-s2r-t660.md

## Service difficulty reports (1)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2005FA0001114](https://openairdocs.org/sdr/2005FA0001114), Aug 4, 2005: SPAR. BROKEN. THE UPPER RUDDER SPAR WAS BROKEN 12.5 INCHES ABOVE THE UPPER HINGE. IN ADDITION, THE SPAR CRACKED UNDER THE UPPER HINGE FITTINGS. THIS CAUSED THE RUDDER COUNTER

## 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 DFW06LA130](https://openairdocs.org/ntsb/DFW06LA130), May 18, 2006: Ayres S2R (N4121G), DeWitt, AR, substantial damage, 1 fatal. Probable cause: The failure by both pilots to maintain adequate visual lookout and the Grumman G-164A pilot's impairment caused by the recent use of marijuana.

## 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 20060518010072A](https://openairdocs.org/incident/20060518010072A), May 18, 2006: Ayres S2RT660 (N4121G), Dewitt, AR, Destroyed. (-23) On may 18, 2006, at approximately 12:00 CDT, a Grumman G-164, N6629, collided with an Ayres-S2R, N4121G. The Ayres, N4121G, was ferrying a load of…

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