# N53LL: 2015 Sportine Aviacija IR Ko LAK-17B FES

- Status: Valid registration
- Airframe: [Sportine Aviacija IR Ko LAK-17B FES](https://openairdocs.org/model/sportine-aviacija-ir-ko-lak-17b-fes) (registry code 05631PN, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 237
- Year built: 2015
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, exhibition, racing
- Airworthiness date: March 10, 2016
- Certificate issued: November 8, 2019
- Expires: November 30, 2029
- Mode S code: A6AF19
- Registered owner: [Oconnor Gerald P](https://openairdocs.org/faa-owner/OCONNOR%20GERALD%20P)
- Location: [Bethel Park, PA](https://openairdocs.org/faa-place/PA/Bethel%20Park)
- Owner type: Individual
- Owner's area on the map: 40.3212° N, 80.0371° W: Placed by OpenAirDocs at the center of ZIP code 15102, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=53LL
- Page: https://openairdocs.org/aircraft/N53LL

From the FAA registry file of October 22, 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 (Sportine Aviacija IR Ko LAK-17B FES)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N53LL.

## FAA accident and incident reports

None matched to N53LL.

## 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.

## Earlier aircraft with N53LL

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N53LL before.

- [Cancelled 2010-09-08](https://openairdocs.org/deregistered/N53LL-2010-09-08): Bell 47G-3B-1, S/N 3445, built 1965. Exported to Mexico. Owner: [Helicopters West LLC](https://openairdocs.org/faa-owner/HELICOPTERS%20WEST%20LLC), [Peoria, AZ](https://openairdocs.org/faa-place/AZ/Peoria)

## Related

- Other Sportine Aviacija IR Ko LAK-17B FES aircraft: https://openairdocs.org/model/sportine-aviacija-ir-ko-lak-17b-fes/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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