# N5540X: 1973 Aero Commander S2R, registration cancelled 2012-08-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 23, 2012
- Status when cancelled: Revoked, canceled
- Airframe: [Aero Commander S2R](https://openairdocs.org/model/aero-commander-s2r) (registry code 0143022)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 1740R
- Year built: 1973
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Certificate issued: May 18, 1978
- Last registry action: May 27, 1978
- Mode S code: A710B5
- Owner when cancelled: [Littlefield Spraying Service Inc](https://openairdocs.org/faa-owner/LITTLEFIELD%20SPRAYING%20SERVICE%20INC)
- Location: [Littlefield, TX](https://openairdocs.org/faa-place/TX/Littlefield)
- Owner type: Corporation
- Owner's area on the map: 33.8866° N, 102.3549° W: Placed by OpenAirDocs at the center of ZIP code 79339, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N5540X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5540X
- Page: https://openairdocs.org/deregistered/N5540X-2012-08-23

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 Aero Commander S2R: https://openairdocs.org/model/aero-commander-s2r.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 FTW74FQG09](https://openairdocs.org/ntsb/FTW74FQG09), Aug 14, 1973: Aero Comdr 600S2R (N5540X), Dimmitt, TX, 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 19730814030879A](https://openairdocs.org/incident/19730814030879A), Aug 14, 1973: Ayres S2R (N5540X), Dimmitt, TX, Substantial damage. Carb float needle valve seat loose 21/2 turns locking device worn permittng seat to loosen.

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