# N4421B: 1965 Bac Jet Provost P84 T3A

- Status: Valid registration
- Airframe: [Bac Jet Provost P84 T3A](https://openairdocs.org/model/bac-jet-provost-p84-t3a) (registry code 05620JU, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: PACW11803
- Year built: 1965
- Type: Fixed wing single engine
- Engine type: Turbo-jet
- Airworthiness: Experimental, exhibition
- Airworthiness date: April 25, 1993
- Certificate issued: June 11, 2007
- Expires: July 31, 2027
- Mode S code: A55488
- Registered owner: [Western Sky Aviation Warbird Museum Inc](https://openairdocs.org/faa-owner/WESTERN%20SKY%20AVIATION%20WARBIRD%20MUSEUM%20INC)
- Location: [St George, UT](https://openairdocs.org/faa-place/UT/St%20George)
- Owner type: Corporation
- Owner's area on the map: 37.1384° N, 113.6296° W: Placed by OpenAirDocs at the center of ZIP code 84770, 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=4421B
- Page: https://openairdocs.org/aircraft/N4421B

From the FAA registry file of October 28, 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 (Bac Jet Provost P84 T3A)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4421B.

## FAA accident and incident reports

None matched to N4421B.

## 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 N4421B

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4421B before.

- [Cancelled 1970-09-23](https://openairdocs.org/deregistered/N4421B-1970-09-23): Cessna 170B, S/N 26765. Owner: [Schmidt Edward J](https://openairdocs.org/faa-owner/SCHMIDT%20EDWARD%20J), [Bude, MS](https://openairdocs.org/faa-place/MS/Bude)
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N4421B-undated): MC Allister Carroll J WIZARD T-38BR503, S/N 0028. Triennial form not returned

## Related

- Other Bac Jet Provost P84 T3A aircraft: https://openairdocs.org/model/bac-jet-provost-p84-t3a/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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