# N4155X: 1974 Rockwell International S-2R

- Status: Valid registration
- Airframe: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202, 1 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 1932R
- Year built: 1974
- Type: Fixed wing single engine
- Engine type: Turbo-prop
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: March 30, 1974
- Certificate issued: December 16, 2025
- Expires: December 31, 2032
- Mode S code: A4E9D0
- Registered owner: [Hawke Ag Aviation Inc](https://openairdocs.org/faa-owner/HAWKE%20AG%20AVIATION%20INC)
- Location: [Oakdale, CA](https://openairdocs.org/faa-place/CA/Oakdale)
- Owner type: Corporation
- Owner's area on the map: 37.7915° N, 120.7861° W: Placed by OpenAirDocs at the center of ZIP code 95361, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4155X
- Page: https://openairdocs.org/aircraft/N4155X

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 (Rockwell International S-2R)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4155X.

## FAA accident and incident reports

None matched to N4155X.

## 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.

## Related

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

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