# N90BH: 1973 Holbrook JT-1

- Status: Valid registration
- Airframe: [Holbrook JT-1](https://openairdocs.org/model/holbrook-jt-1) (registry code 0562661, 1 seats)
- Engine: [Franklin 4AC176B series](https://openairdocs.org/engine/franklin-4ac176b-series) (registry code 27006)
- Serial number: 30630
- Year built: 1973
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 10, 1980
- Certificate issued: November 17, 2018
- Expires: November 30, 2028
- Mode S code: AC6CF4
- Registered owner: [Kait Alan H](https://openairdocs.org/faa-owner/KAIT%20ALAN%20H)
- Location: [Lompoc, CA](https://openairdocs.org/faa-place/CA/Lompoc)
- Owner type: Individual
- Owner's area on the map: 34.5999° N, 120.3765° W: Placed by OpenAirDocs at the center of ZIP code 93436, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=90BH
- Page: https://openairdocs.org/aircraft/N90BH

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. The registry lists only the engine series, so ADs for every Franklin 4AC176B model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Holbrook JT-1)

None in force.

### Matched by engine (Franklin 4AC176B series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N90BH.

## FAA accident and incident reports

None matched to N90BH.

## 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 Holbrook JT-1 aircraft: https://openairdocs.org/model/holbrook-jt-1/aircraft.md
- The Franklin 4AC176B series engine: https://openairdocs.org/engine/franklin-4ac176b-series.md

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