# N1750Z: 2012 Thomas A Siminski ZENITH CH 750, registration cancelled 2018-07-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 6, 2018
- Status when cancelled: Third renewal notice
- Airframe: [Thomas A Siminski ZENITH CH 750](https://openairdocs.org/model/thomas-a-siminski-zenith-ch-750) (registry code 05631LG)
- Engine: [Corvair GO-140](https://openairdocs.org/engine/corvair-go-140) (registry code 18001)
- Serial number: 75-7859
- Year built: 2012
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Zenith Aircraft Co STOL CH 750
- Airworthiness: Experimental, amateur built
- Airworthiness date: June 28, 2012
- Certificate issued: April 30, 2012
- Last registry action: January 27, 2015
- Mode S code: A12E30
- Owner when cancelled: [Siminski Thomas A](https://openairdocs.org/faa-owner/SIMINSKI%20THOMAS%20A)
- Location: [Zionsville, PA](https://openairdocs.org/faa-place/PA/Zionsville)
- Owner type: Individual
- Owner's area on the map: 40.4697° N, 75.5131° W: Placed by OpenAirDocs at the center of ZIP code 18092, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N1750Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1750Z
- Page: https://openairdocs.org/deregistered/N1750Z-2018-07-06

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 Thomas A Siminski ZENITH CH 750: https://openairdocs.org/model/thomas-a-siminski-zenith-ch-750.md

## Service difficulty reports (1)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2015FA0000462](https://openairdocs.org/sdr/2015FA0000462), Sep 23, 2015: CYLINDER HEAD. DAMAGED. NR 1 SPARK PLUG, RIGHT REAR, WAS EJECTED FROM CYLINDER HEAD, RESULTING IN PARTIAL POWER LOSS. SPARK PLUG THREADED BOSS IS ALUMINUM HEAD AND SUBJECT TO WEAR AND 

## 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 ERA15LA311](https://openairdocs.org/ntsb/ERA15LA311), Aug 14, 2015: Thomas A Siminski Zenith CH 750 (N1750Z), Allentown, PA, substantial damage. Probable cause: A partial loss of engine power due to the No. 1 spark plug being liberated from the cylinder head due to the stripped threads in the cylinder head. Contributing to the accident was the pilot’s…

## 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.

- [Accident 20150814014509A](https://openairdocs.org/incident/20150814014509A), Aug 14, 2015: Thomas A Siminski ZENITH CH 750 (N1750Z), Allentown, PA, Substantial damage. Aircraft departed Allentown queen city (xll) runway 25 on a personal flight approximately 1100 local. The engine lost power approximately 100 ft AGL, the pilot…
- [Incident 20120909018249I](https://openairdocs.org/incident/20120909018249I), Sep 9, 2012: Thomas A Siminski ZENITH CH 750 (N1750Z), Allentown, PA, Minor damage. Upon landing, aircraft stalled just prior to touchdown causing aircraft to land hard causing a jolt and bounce, at time of jolt pilot advanced throttle and…

## Other aircraft with N1750Z

- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N1750Z-undated): Cessna 336, S/N 3360050. N-number assigned, not yet registered

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