# N503S: 1993 Pdps Pzl-Bielsko SZD-50-3

- Status: Valid registration
- Airframe: [Pdps Pzl-Bielsko SZD-50-3](https://openairdocs.org/model/pdps-pzl-bielsko-szd-50-3) (registry code 8821647, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: B-2086
- Year built: 1993
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, exhibition, racing
- Airworthiness date: August 24, 1993
- Certificate issued: August 10, 2023
- Expires: August 31, 2030
- Mode S code: A646A5
- Registered owner: [Merlin Aviation Inc](https://openairdocs.org/faa-owner/MERLIN%20AVIATION%20INC)
- Location: [Moriarty, NM](https://openairdocs.org/faa-place/NM/Moriarty)
- Owner type: Corporation
- Owner's area on the map: 34.9520° N, 105.9094° W: Placed by OpenAirDocs at the center of ZIP code 87035, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=503S
- Page: https://openairdocs.org/aircraft/N503S

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.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Pdps Pzl-Bielsko SZD-50-3)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N503S.

## FAA accident and incident reports

None matched to N503S.

## 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 Pdps Pzl-Bielsko SZD-50-3 aircraft: https://openairdocs.org/model/pdps-pzl-bielsko-szd-50-3/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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