# N511U: 1972 Thrash Frank J SA100, registration cancelled 2017-10-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 6, 2017
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Thrash Frank J SA100](https://openairdocs.org/model/thrash-frank-j-sa100) (registry code 8660104)
- Engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506)
- Data sheets: [TCDS E-229](https://openairdocs.org/tcds/E-229) (OpenAirDocs)
- Serial number: WR-001
- Year built: 1972
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 27, 1980
- Certificate issued: March 2, 2011
- Last registry action: March 2, 2011
- Mode S code: A666E8
- Owner when cancelled: [Av-Mech LLC](https://openairdocs.org/faa-owner/AV-MECH%20LLC)
- Location: [Leesburg, FL](https://openairdocs.org/faa-place/FL/Leesburg)
- Owner type: Corporation
- Owner's area on the map: 28.8803° N, 81.7901° W: Placed by OpenAirDocs at the center of ZIP code 34788, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N511U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=511U
- Page: https://openairdocs.org/deregistered/N511U-2017-10-06

From the FAA registry file of October 28, 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 Thrash Frank J SA100: https://openairdocs.org/model/thrash-frank-j-sa100.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 MIA89LA079](https://openairdocs.org/ntsb/MIA89LA079), Feb 4, 1989: Stolp-Adams SA100 (N511U), Indian Rocks, FL, substantial damage. Probable cause: THE PILOT'S ATTEMPT TO PERFORM AEROBATIC MANEUVERS IN AN AIRCRAFT THAT WAS NOT EQUIPPED WITH FUEL AND OIL SYSTEMS THAT WOULD CONTINUE TO OPERATE IN INVERTED POSITIONS. THIS ACTION RESULTED IN A LOSS…

## 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 19890204015849A](https://openairdocs.org/incident/19890204015849A), Feb 4, 1989: Amtrsa SA100 (N511U), Indian Rocks Be, FL, Substantial damage. Engine quit, ditched in gulf off shore. Owner says pilot was flying inverted acrobatics. No inverted fuel system.

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