# N4004M: 1978 Ayres S2R-600, registration cancelled 2018-01-03

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 3, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Ayres S2R-600](https://openairdocs.org/model/ayres-s2r-600) (registry code 0970102)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2491R
- Year built: 1978
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: July 27, 1994
- Certificate issued: May 8, 1997
- Last registry action: August 23, 2011
- Mode S code: A4AF91
- Owner when cancelled: [Alexander Ag Flying Service Inc](https://openairdocs.org/faa-owner/ALEXANDER%20AG%20FLYING%20SERVICE%20INC)
- Location: [Walnut Grove, CA](https://openairdocs.org/faa-place/CA/Walnut%20Grove)
- Physical address: [Isleton, CA](https://openairdocs.org/faa-place/CA/Isleton)
- Owner type: Corporation
- Owner's area on the map: 38.2034° N, 121.6262° W: Placed by OpenAirDocs at the center of ZIP code 95690, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4004M
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4004M
- Page: https://openairdocs.org/deregistered/N4004M-2018-01-03

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-600: https://openairdocs.org/model/ayres-s2r-600.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 OAK79DVA09](https://openairdocs.org/ntsb/OAK79DVA09), Oct 27, 1978: Ayres S2R (N4004M), Corcoran, CA, substantial damage

## FAA accident and incident reports (2)

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.

- [Incident 20070320007999I](https://openairdocs.org/incident/20070320007999I), Mar 20, 2007: Ayres S2R600 (N4004M), Sacramento, CA, Minor damage. (-23) Aircraft departed spezia field, CA. At approximately 1325 local PST on 3/20/2007. During flight, the engine quit running suddenly. Pilot landed aircraft…
- [Accident 19781027034099A](https://openairdocs.org/incident/19781027034099A), Oct 27, 1978: Ayres S2B (N4004M), Corcoran, CA, Substantial damage. Dust cloud drifted across rwy during tkof. Acft came to rest in CA

## Other aircraft with N4004M

- [Registered now](https://openairdocs.org/aircraft/N4004M): Robinson Helicopter R44, S/N 2854, built 2026
- [Cancelled 1954-01-14](https://openairdocs.org/deregistered/N4004M-1954-01-14): Piper PA-12, S/N 12-2881. Owner: [Pack Garland W](https://openairdocs.org/faa-owner/PACK%20GARLAND%20W), [Nashville, TN](https://openairdocs.org/faa-place/TN/Nashville)

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