# N104PJ: Koo Carlos Chang LANCAIR IV-P

- Status: Valid registration
- Airframe: [Koo Carlos Chang LANCAIR IV-P](https://openairdocs.org/model/koo-carlos-chang-lancair-iv-p) (registry code 05614DT, 4 seats)
- Engine: [Walter 601EX](https://openairdocs.org/engine/walter-601ex) (registry code 64013)
- Serial number: LIV-491
- Type: Fixed wing single engine
- Engine type: Turbo-prop
- Kit: Lancair Intl Inc LANCAIR IV P
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 10, 2015
- Mode S code: A014DE
- Registered owner: [St Louis Sports Car Company Inc](https://openairdocs.org/faa-owner/ST%20LOUIS%20SPORTS%20CAR%20COMPANY%20INC)
- Location: [Chesterfield, MO](https://openairdocs.org/faa-place/MO/Chesterfield)
- Owner type: Corporation
- Owner's area on the map: 38.6563° N, 90.5419° W: Placed by OpenAirDocs at the center of ZIP code 63017, 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=104PJ
- Page: https://openairdocs.org/aircraft/N104PJ

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 (Koo Carlos Chang LANCAIR IV-P)

None in force.

### Matched by engine (Walter 601EX)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N104PJ.

## FAA accident and incident reports

None matched to N104PJ.

## 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 N104PJ

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N104PJ before.

- [Cancelled 2014-12-18](https://openairdocs.org/deregistered/N104PJ-2014-12-18): Lockheed F-104G, S/N FX84. Sale reported, canceled. Owner: [Mcminnville, OK](https://openairdocs.org/faa-place/OK/Mcminnville)

## Related

- Other Koo Carlos Chang LANCAIR IV-P aircraft: https://openairdocs.org/model/koo-carlos-chang-lancair-iv-p/aircraft.md
- The Walter 601EX engine: https://openairdocs.org/engine/walter-601ex.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.