# N8521A: Himburg Carl Edward PITTS SPECIAL S-1C

- Status: Valid registration
- Airframe: [Himburg Carl Edward PITTS SPECIAL S-1C](https://openairdocs.org/model/himburg-carl-edward-pitts-special-s-1c) (registry code 7221178, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: XP1-EH
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: June 22, 1987
- Certificate issued: May 13, 2023
- Expires: May 31, 2030
- Mode S code: ABB142
- Registered owners: [Baldwin Frank D](https://openairdocs.org/faa-owner/BALDWIN%20FRANK%20D), [Bradsher Harold M](https://openairdocs.org/faa-owner/BRADSHER%20HAROLD%20M), [Baldwin Dale A](https://openairdocs.org/faa-owner/BALDWIN%20DALE%20A)
- Location: [Troy, MO](https://openairdocs.org/faa-place/MO/Troy)
- Owner type: Co-owned
- Owner's area on the map: 39.0010° N, 90.9956° W: Placed by OpenAirDocs at the center of ZIP code 63379, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=8521A
- Page: https://openairdocs.org/aircraft/N8521A

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 (Himburg Carl Edward PITTS SPECIAL S-1C)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N8521A.

## FAA accident and incident reports

None matched to N8521A.

## 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 N8521A

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N8521A before.

- [Cancelled 1951-02-28](https://openairdocs.org/deregistered/N8521A-1951-02-28): Beech A35, S/N D-2021. Exported to Chile. Owner: [Fleetway Inc](https://openairdocs.org/faa-owner/FLEETWAY%20INC), [Glendale, CA](https://openairdocs.org/faa-place/CA/Glendale)

## Related

- Other Himburg Carl Edward PITTS SPECIAL S-1C aircraft: https://openairdocs.org/model/himburg-carl-edward-pitts-special-s-1c/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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