# N557SX: 2006 Ruggles Robert SONEX, registration cancelled 2010-07-27

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 27, 2010
- Status when cancelled: Triennial form not returned
- Airframe: [Ruggles Robert SONEX](https://openairdocs.org/model/ruggles-robert-sonex) (registry code 05619S4)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 0557
- Year built: 2006
- Type of aircraft: Fixed wing single engine
- Kit: Sonex Ltd SONEX
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 27, 2006
- Certificate issued: June 29, 2007
- Last registry action: June 15, 2010
- Mode S code: A71B12
- Owner when cancelled: [Wren Ronnie D](https://openairdocs.org/faa-owner/WREN%20RONNIE%20D)
- Location: [Leonard, TX](https://openairdocs.org/faa-place/TX/Leonard)
- Owner type: Individual
- Owner's area on the map: 33.4022° N, 96.2386° W: Placed by OpenAirDocs at the center of ZIP code 75452, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N557SX
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=557SX
- Page: https://openairdocs.org/deregistered/N557SX-2010-07-27

From the FAA registry file of October 31, 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 Ruggles Robert SONEX: https://openairdocs.org/model/ruggles-robert-sonex.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 DFW07LA183](https://openairdocs.org/ntsb/DFW07LA183), Aug 15, 2007: Huggles Sonex (N557SX), Bonham, TX, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain control of the airplane on take off, which resulted in an inadvertent stall and subsequent collision with terrain.

## 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 20070815823849A](https://openairdocs.org/incident/20070815823849A), Aug 15, 2007: Amtr SONEX (N557SX), Bonham, TX, Destroyed, 1 fatal. (-23) Aircraft departed Bonham Texas Jones Field (F00) at approximately 0655 on runway 35. One witness stated that aircraft appeared to takeoff normally and…

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