# N5644X: 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: 1844R
- Year built: 1973
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: November 10, 1973
- Certificate issued: September 23, 2024
- Expires: September 30, 2031
- Mode S code: A738C0
- Registered owner: [Bellamy Mark A](https://openairdocs.org/faa-owner/BELLAMY%20MARK%20A)
- Location: [Freeville, NY](https://openairdocs.org/faa-place/NY/Freeville)
- Owner type: Individual
- Owner's area on the map: 42.4924° N, 76.3592° W: Placed by OpenAirDocs at the center of ZIP code 13068, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5644X
- Page: https://openairdocs.org/aircraft/N5644X

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 (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 LAX87DVG05](https://openairdocs.org/ntsb/LAX87DVG05), Apr 27, 1987: Aero Commander S2R (N5644X), Gridley, CA, substantial damage

## 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.

- [Incident 20180715011289I](https://openairdocs.org/incident/20180715011289I), Jul 15, 2018: Aero Commander S2R (N5644X), Farmer City, IL, Minor damage. Aircraft flying return trip to base experianced a loss of power, engine was vibrating and smoking, pilot landed in a corn field, no injuries reported.
- [Accident 19870427011989A](https://openairdocs.org/incident/19870427011989A), Apr 27, 1987: Ayres S2RR1340REST (N5644X), Gridley, CA, Substantial damage. The aircraft struck a levee on takeoff after the engine lost power. The fuel pump was found to be malfunctioning.

## 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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