# N5543X: 1973 Aero Commander S2R

- Status: Valid registration
- Airframe: [Aero Commander S2R](https://openairdocs.org/model/aero-commander-s2r) (registry code 0143022, 1 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 1743R
- Year built: 1973
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: April 10, 1973
- Certificate issued: January 26, 2017
- Expires: January 31, 2030
- Mode S code: A7111E
- Registered owner: [Croom Aviation LLC](https://openairdocs.org/faa-owner/CROOM%20AVIATION%20LLC)
- Location: [Port Saint Joe, FL](https://openairdocs.org/faa-place/FL/Port%20Saint%20Joe)
- Owner type: LLC
- Owner's area on the map: 29.8176° N, 85.3091° W: Placed by OpenAirDocs: center of Port St. Joe, FL, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5543X
- Page: https://openairdocs.org/aircraft/N5543X

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 (Aero Commander S2R)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## 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 MIA89LA166](https://openairdocs.org/ntsb/MIA89LA166), May 28, 1989: Ayres S2R (N5543X), Lambert, MS, destroyed. Probable cause: FAILURE OF THE ENGINE IMPELLER. THE DITCH IN THE EMERGENCY LANDING AREA WAS A RELATED FACTOR.
- [NTSB MKC85LA151](https://openairdocs.org/ntsb/MKC85LA151), Jul 3, 1985: Aero Commander S2R (N5543X), Paragould, AR, substantial damage

## FAA accident and incident reports (3)

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 19890528013839A](https://openairdocs.org/incident/19890528013839A), May 28, 1989: Ayres S2RRESTD (N5543X), Lambert, MS, Destroyed. Engine failed on takeoff. Landed in a field hit ditch overturned and burned. Impeller bearing failed.
- [Incident 19880614044999I](https://openairdocs.org/incident/19880614044999I), Jun 14, 1988: Ayres S2RRESTD (N5543X), Cleveland, MS, Minor damage. Power loss on turn around at completion of a swath run. Forced landing. Found a defective engine driven fuel pump.
- [Accident 19850703029869A](https://openairdocs.org/incident/19850703029869A), Jul 3, 1985: Ayres S2RR1340REST (N5543X), Paragould, AR, Substantial damage. Float needle seat assembly threads worn and backed out of carburetor body shutting off the fuel.

## 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 Aero Commander S2R aircraft: https://openairdocs.org/model/aero-commander-s2r/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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