# N4259T: Armstrong Robert C BABY ACE D

- Status: Valid registration
- Airframe: [Armstrong Robert C BABY ACE D](https://openairdocs.org/model/armstrong-robert-c-baby-ace-d) (registry code 0030445, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 324
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 31, 1984
- Certificate issued: September 10, 2023
- Expires: September 30, 2030
- Mode S code: A511D7
- 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=4259T
- Page: https://openairdocs.org/aircraft/N4259T

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 (Armstrong Robert C BABY ACE D)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4259T.

## FAA accident and incident reports

None matched to N4259T.

## 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 N4259T

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4259T before.

- [Cancelled 1974-10-29](https://openairdocs.org/deregistered/N4259T-1974-10-29): Piper PA-28-140, S/N 28-7225107, built 1971. Owner: [Malinowicz P A](https://openairdocs.org/faa-owner/MALINOWICZ%20P%20A), [Mililani, HI](https://openairdocs.org/faa-place/HI/Mililani)

## Related

- Other Armstrong Robert C BABY ACE D aircraft: https://openairdocs.org/model/armstrong-robert-c-baby-ace-d/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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