# N8554N: 1999 Pegasus QUANTUM-503

- Status: Valid registration
- Airframe: [Pegasus QUANTUM-503](https://openairdocs.org/model/pegasus-quantum-503) (registry code 05902DC, 2 seats)
- Engine: [Rotax 503ULDCDI](https://openairdocs.org/engine/rotax-503uldcdi) (registry code 55568)
- Serial number: PS7352
- Year built: 1999
- Type: Weight-shift-control
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: August 28, 2007
- Certificate issued: September 10, 2011
- Expires: September 30, 2027
- Mode S code: ABBCDC
- Registered owner: [Harrell Josh M](https://openairdocs.org/faa-owner/HARRELL%20JOSH%20M)
- Location: [Worthington, IN](https://openairdocs.org/faa-place/IN/Worthington)
- Owner type: Individual
- Owner's area on the map: 39.1433° N, 87.0052° W: Placed by OpenAirDocs at the center of ZIP code 47471, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=8554N
- Page: https://openairdocs.org/aircraft/N8554N

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 (Pegasus QUANTUM-503)

None in force.

### Matched by engine (Rotax 503ULDCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N8554N.

## NTSB investigations on N8554N not matched to an aircraft (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 LAX83FUJ16](https://openairdocs.org/ntsb/LAX83FUJ16), Sep 10, 1983: Semco Challenger (N8554N), Tucson, AZ, no damage

## FAA accident and incident reports

None matched to N8554N.

## 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 N8554N

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N8554N before.

- [Cancelled 1973-09-25](https://openairdocs.org/deregistered/N8554N-1973-09-25): Piper PA-28-235, S/N 28-11353. Exported to Australia. Owner: [Hannan Aviation Ltd](https://openairdocs.org/faa-owner/HANNAN%20AVIATION%20LTD), [San Jose, CA](https://openairdocs.org/faa-place/CA/San%20Jose)

## Related

- Other Pegasus QUANTUM-503 aircraft: https://openairdocs.org/model/pegasus-quantum-503/aircraft.md
- The Rotax 503ULDCDI engine: https://openairdocs.org/engine/rotax-503uldcdi.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.