# N4996X: 1975 Rockwell International S-2R, registration cancelled 2012-02-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 7, 2012
- Status when cancelled: Valid registration
- Airframe: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2138R
- Year built: 1975
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: February 26, 1975
- Certificate issued: May 2, 2011
- Last registry action: May 2, 2011
- Mode S code: A634C7
- Owner when cancelled: [Air-Trac Inc](https://openairdocs.org/faa-owner/AIR-TRAC%20INC)
- Location: [Pasco, WA](https://openairdocs.org/faa-place/WA/Pasco)
- Owner type: Corporation
- Owner's area on the map: 46.3778° N, 118.9517° W: Placed by OpenAirDocs at the center of ZIP code 99301, within about 12 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4996X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4996X
- Page: https://openairdocs.org/deregistered/N4996X-2012-02-07

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 Rockwell International S-2R: https://openairdocs.org/model/rockwell-international-s-2r.md

## NTSB investigations (2)

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 WPR11CA229](https://openairdocs.org/ntsb/WPR11CA229), May 18, 2011: Rockwell International S-2R (N4996X), Kahlotus, WA, substantial damage. Probable cause: The pilot's failure to maintain directional control during takeoff.
- [NTSB SEA98LA125](https://openairdocs.org/ntsb/SEA98LA125), Jul 9, 1998: Rockwell S-2R (N4996X), Pasco, WA, substantial damage. Probable cause: Separation of the throttle linkage which resulted in the loss of power. Factors include worn throttle linkage parts and the furrows in the plowed field which was the available field for the forced…

## 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 20110519008409A](https://openairdocs.org/incident/20110519008409A), May 19, 2011: Rockwell International S-2R (N4996X), Kahlotus, WA, Substantial damage. Pilot attempted takeoff with strong quartering tailwind and lost control. Aircraft went partially off the right side of the runway, and then back up and all…
- [Accident 19980709024399A](https://openairdocs.org/incident/19980709024399A), Jul 9, 1998: Ayres S2R (N4996X), Pasco, WA, Substantial damage. Lost power on liftoff. Dumped load landed potato field. Nosed over. Throttle connector worn out failed. (.4)the pilot reported that while taking off to the…

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