# N4451K: Kollmann Hubert N MONNETT MONI

- Status: Valid registration
- Airframe: [Kollmann Hubert N MONNETT MONI](https://openairdocs.org/model/kollmann-hubert-n-monnett-moni) (registry code 056592E, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 00194
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 11, 1984
- Certificate issued: December 14, 2022
- Expires: December 31, 2029
- Mode S code: A55FB5
- Registered owner: [O'Connor Thomas W](https://openairdocs.org/faa-owner/O'CONNOR%20THOMAS%20W)
- Location: [Sebring, FL](https://openairdocs.org/faa-place/FL/Sebring)
- Owner type: Individual
- Owner's area on the map: 27.5052° N, 81.5460° W: Placed by OpenAirDocs at the center of ZIP code 33872, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4451K
- Page: https://openairdocs.org/aircraft/N4451K

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 (Kollmann Hubert N MONNETT MONI)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4451K.

## FAA accident and incident reports

None matched to N4451K.

## 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 N4451K

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4451K before.

- [Cancelled 2014-03-12](https://openairdocs.org/deregistered/N4451K-2014-03-12): Robinson Helicopter R44 II, S/N 12921, built 2009. Exported to China. Owner: Jinan Shangdong

## Related

- Other Kollmann Hubert N MONNETT MONI aircraft: https://openairdocs.org/model/kollmann-hubert-n-monnett-moni/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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