# N4991C: Tierney TAYLOR MONOPLANE JT1

- Status: Valid registration
- Airframe: [Tierney TAYLOR MONOPLANE JT1](https://openairdocs.org/model/tierney-taylor-monoplane-jt1) (registry code 05608B9, 1 seats)
- Serial number: JT1/89
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: May 24, 2005
- Expires: April 30, 2030
- Mode S code: A63405
- Registered owner: [Mid Atlantic Air Museum](https://openairdocs.org/faa-owner/MID%20ATLANTIC%20AIR%20MUSEUM)
- Location: [Reading, PA](https://openairdocs.org/faa-place/PA/Reading)
- Owner type: Corporation
- Owner's area on the map: 40.3986° N, 75.9461° W: Placed by OpenAirDocs at the center of ZIP code 19605, 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=4991C
- Page: https://openairdocs.org/aircraft/N4991C

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 (Tierney TAYLOR MONOPLANE JT1)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4991C.

## FAA accident and incident reports

None matched to N4991C.

## 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 N4991C

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4991C before.

- [Cancelled 1968-01-22](https://openairdocs.org/deregistered/N4991C-1968-01-22): Brantly B-2, S/N 26. Owner: [Martin Herman L](https://openairdocs.org/faa-owner/MARTIN%20HERMAN%20L), [Walla Walla, WA](https://openairdocs.org/faa-place/WA/Walla%20Walla)

## Related

- Other Tierney TAYLOR MONOPLANE JT1 aircraft: https://openairdocs.org/model/tierney-taylor-monoplane-jt1/aircraft.md

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