# N4002R: 1978 Ayres S-2R

- Status: Valid registration
- Airframe: [Ayres S-2R](https://openairdocs.org/model/ayres-s-2r) (registry code 0970101, 1 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2478R
- Year built: 1978
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Certificate issued: January 4, 2024
- Expires: January 31, 2031
- Mode S code: A4AF4F
- Registered owner: [Sides Aviation LLC](https://openairdocs.org/faa-owner/SIDES%20AVIATION%20LLC)
- Location: [Cambridge, NE](https://openairdocs.org/faa-place/NE/Cambridge)
- Owner type: LLC
- Owner's area on the map: 40.3418° N, 100.1871° W: Placed by OpenAirDocs at the center of ZIP code 69022, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4002R
- Page: https://openairdocs.org/aircraft/N4002R

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 S-2R)

None in force.

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

None in force.

### Historical (superseded or no longer in force)

- [AD 97-17-03](https://openairdocs.org/ad/97-17-03) (historical): Lower Spar Cap Bolt Hole Areas · Ayres 600 S-2D, S-2R, S2R-G1 and 12 more. Effective Sep 5, 1997
- [AD 97-13-11](https://openairdocs.org/ad/97-13-11) (historical): Lower Spar Cap Bolt Hole Areas · Ayres 600-S-2C, S-2R, S2R-G1 and 12 more. Effective Jul 23, 1997

## Information bulletins (advisory) (1 in force)

- [SAIB ACE-98-42](https://openairdocs.org/saib/ACE-98-42): . Issued Jul 24, 1998

## 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 DFW08CA156](https://openairdocs.org/ntsb/DFW08CA156), May 25, 2008: Ayres S-2R (N4002R), McDonald, KS, substantial damage. Probable cause: The pilot's failure to maintain aircraft control during the takeoff. Contributing to the accident was the soft terrain.

## 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.

- [Accident 20080525834749A](https://openairdocs.org/incident/20080525834749A), May 25, 2008: Ayres S2R (N4002R), Mcdonald, KS, Substantial damage. (-23) The turf runways in use were soft from recent rains. The pilot tried taking off first from a shorter runway, realized he was not getting enough speed for…
- [Incident 19840320013269I](https://openairdocs.org/incident/19840320013269I), Mar 20, 1984: N4002R, Buttonwillow, CA, Minor damage. Struck a truck exhaust stack while on short final for landing. Truck parked 200 feet from the runway.

## 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.

## Earlier aircraft with N4002R

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4002R before.

- [Cancelled 1968-04-24](https://openairdocs.org/deregistered/N4002R-1968-04-24): Piper PA-32-300, S/N 32-40288, built 1967. Owner: [Voyagers Air Charter Service](https://openairdocs.org/faa-owner/VOYAGERS%20AIR%20CHARTER%20SERVICE), [Burbank, CA](https://openairdocs.org/faa-place/CA/Burbank)

## Related

- Other Ayres S-2R aircraft: https://openairdocs.org/model/ayres-s-2r/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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