# N4006U: 1978 Ayres S-2R, registration cancelled 2007-08-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 10, 2007
- Exported to: Israel
- Status when cancelled: Valid registration
- Airframe: [Ayres S-2R](https://openairdocs.org/model/ayres-s-2r) (registry code 0970101)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2500R
- Year built: 1978
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: October 26, 1978
- Certificate issued: September 21, 2005
- Last registry action: September 12, 2006
- Mode S code: A4AFDE
- Owner when cancelled: [Ruhe Sales Inc](https://openairdocs.org/faa-owner/RUHE%20SALES%20INC)
- Location: [Leipsic, OH](https://openairdocs.org/faa-place/OH/Leipsic)
- Owner type: Corporation
- Owner's area on the map: 41.1118° N, 83.9998° W: Placed by OpenAirDocs at the center of ZIP code 45856, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4006U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4006U
- Page: https://openairdocs.org/deregistered/N4006U-2007-08-10

From the FAA registry file of November 3, 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 S-2R: https://openairdocs.org/model/ayres-s-2r.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 CHI84LA188](https://openairdocs.org/ntsb/CHI84LA188), May 13, 1984: Ayres S2R (N4006U), Vincennes, IN, substantial damage

## 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 19840512016929A](https://openairdocs.org/incident/19840512016929A), May 12, 1984: Ayres S2RRESTD (N4006U), Vincennes, IN, Substantial damage. Unable to accelerate on takeoff. Dumped load and aborted. Lifted to avoid a ditch. Ground looped in a wheat field.

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