# N81633: 1997 Mulec Frank A FP-404

- Status: Valid registration
- Airframe: [Mulec Frank A FP-404](https://openairdocs.org/model/mulec-frank-a-fp-404) (registry code 05628EQ, 1 seats)
- Engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050)
- Serial number: 01
- Year built: 1997
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 20, 1997
- Certificate issued: March 13, 2024
- Expires: March 31, 2031
- Mode S code: AB2283
- Registered owner: [Realty Investment Co Ltd](https://openairdocs.org/faa-owner/REALTY%20INVESTMENT%20CO%20LTD)
- Location: [Hilo, HI](https://openairdocs.org/faa-place/HI/Hilo)
- Owner type: Corporation
- Owner's area on the map: 19.6598° N, 155.2325° W: Placed by OpenAirDocs at the center of ZIP code 96720, 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=81633
- Page: https://openairdocs.org/aircraft/N81633

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 (Mulec Frank A FP-404)

None in force.

### Matched by engine (Bombardier ROTAX (ALL))

None in force.

## Information bulletins (advisory)

None matched.

## 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 WPR09CA090](https://openairdocs.org/ntsb/WPR09CA090), Jan 18, 2009: Mulec Frank A FP-404 (N81633), Hilo, HI, substantial damage. Probable cause: A total loss of engine power due to fuel starvation as a result of a clogged fuel filter.

## 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 20090118002409A](https://openairdocs.org/incident/20090118002409A), Jan 18, 2009: Mulec FP404 (N81633), Hilo, HI, Substantial damage. Pilot departed the Hilo int’l airport (pito) and flew toward his regular practice area south of Hilo. At 2500 feet approximately, the pilot stated that the…
- [Incident 20070923022059I](https://openairdocs.org/incident/20070923022059I), Sep 23, 2007: Amtr FP404 (N81633), Hilo, HI, Minor damage. (-23) PIC reported upon landing and taxiing off the runway surface the right landing gear collapsed. The PIC did not attribute this failure from a possible…

## 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 Mulec Frank A FP-404 aircraft: https://openairdocs.org/model/mulec-frank-a-fp-404/aircraft.md
- The Bombardier ROTAX (ALL) engine: https://openairdocs.org/engine/bombardier-rotax-all.md

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