# N4923X: 1974 Rockwell International S-2R, registration cancelled 2004-08-25

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 25, 2004
- Status when cancelled: Triennial form not returned
- 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: 2119R
- Year built: 1974
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: December 16, 1974
- Certificate issued: July 21, 2000
- Last registry action: July 20, 2004
- Mode S code: A61A5D
- Owner when cancelled: [M J Aviation Inc](https://openairdocs.org/faa-owner/M%20J%20AVIATION%20INC)
- Location: [Letcher, SD](https://openairdocs.org/faa-place/SD/Letcher)
- Owner type: Corporation
- Owner's area on the map: 43.9025° N, 98.1544° W: Placed by OpenAirDocs at the center of ZIP code 57359, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4923X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4923X
- Page: https://openairdocs.org/deregistered/N4923X-2004-08-25

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 CHI03LA243](https://openairdocs.org/ntsb/CHI03LA243), Aug 2, 2003: Rockwell International S-2R (N4923X), Mitchell, SD, substantial damage. Probable cause: The pilot's inadequate visual lookout and not maintaining clearance from the power line during the low level aerial application maneuver. A related factor was the power line.
- [NTSB CHI99LA287](https://openairdocs.org/ntsb/CHI99LA287), Aug 11, 1999: Rockwell S-2R (N4923X), Garden City, KS, substantial damage. Probable cause: The pilot's misjudging his pull-up maneuver resulting in contact with the wire. A contributing factor was the wire.

## 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 20030802016099A](https://openairdocs.org/incident/20030802016099A), Aug 2, 2003: Ayres S2R (N4923X), Mitchell, SD, Destroyed. (-23) On August 2, 2003, N4923K, a rockwell S-2R, struck a powerline at mile marker 334 near Mitchell SD, during an aerial application. The aircraft was…
- [Accident 19990811011759A](https://openairdocs.org/incident/19990811011759A), Aug 11, 1999: Ayres S2R (N4923X), Garden City, KS, Substantial damage. Acft struck power lines during aerial application and sustained substantial damage. (.19) on August 11, 1999, at 0950 central daylight time, a rockwell S-2R…

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