# N1085P: 2003 Weiler Douglas C RV-4

- Status: Valid registration
- Airframe: [Weiler Douglas C RV-4](https://openairdocs.org/model/weiler-douglas-c-rv-4) (registry code 056076S, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 2649
- Year built: 2003
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Vans Aircraft Inc RV-4
- Airworthiness: Experimental, amateur built
- Airworthiness date: June 15, 2003
- Certificate issued: January 7, 2026
- Expires: January 31, 2033
- Mode S code: A02581
- Registered owner: [Firkins Todd H](https://openairdocs.org/faa-owner/FIRKINS%20TODD%20H)
- Location: [Granbury, TX](https://openairdocs.org/faa-place/TX/Granbury)
- Owner type: Individual
- Owner's area on the map: 32.4616° N, 97.7034° W: Placed by OpenAirDocs at the center of ZIP code 76049, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1085P
- Page: https://openairdocs.org/aircraft/N1085P

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 (Weiler Douglas C RV-4)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N1085P.

## FAA accident and incident reports

None matched to N1085P.

## 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 N1085P

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N1085P before.

- [Cancelled 2009-09-18](https://openairdocs.org/deregistered/N1085P-2009-09-18): Piper PA-23, S/N 23-94, built 1954. Registration revoked. Owner: [Joannides Anthony](https://openairdocs.org/faa-owner/JOANNIDES%20ANTHONY), [Fremont, CA](https://openairdocs.org/faa-place/CA/Fremont)

## Related

- Other Weiler Douglas C RV-4 aircraft: https://openairdocs.org/model/weiler-douglas-c-rv-4/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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