# N853BF: 1985 Francisco Boyd Jr/Sr BD-4

- Status: Valid registration
- Airframe: [Francisco Boyd Jr/Sr BD-4](https://openairdocs.org/model/francisco-boyd-jr-sr-bd-4) (registry code 11304E6, 4 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 445
- Year built: 1985
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 2, 1989
- Certificate issued: July 1, 2023
- Expires: July 31, 2030
- Mode S code: ABB29C
- Registered owners: [Francisco Boyd M Jr](https://openairdocs.org/faa-owner/FRANCISCO%20BOYD%20M%20JR), [Francisco Lori A](https://openairdocs.org/faa-owner/FRANCISCO%20LORI%20A)
- Location: [Apple Valley, MN](https://openairdocs.org/faa-place/MN/Apple%20Valley)
- Owner type: Co-owned
- Owner's area on the map: 44.7453° N, 93.1994° W: Placed by OpenAirDocs at the center of ZIP code 55124, 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=853BF
- Page: https://openairdocs.org/aircraft/N853BF

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 (Francisco Boyd Jr/Sr BD-4)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI90DER04](https://openairdocs.org/ntsb/CHI90DER04), Jul 31, 1990: BD 4- Francisco BD-4 (N853BF), Rosemount, MN, substantial damage. Probable cause: FAILURE OF THE MANUFACTURER (AMATEUR BUILT) TO DESIGN FUEL SYSTEM ADEQUATELY TO PREVENT VAPOR LOCK IN FUEL LINE.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19900731029369A](https://openairdocs.org/incident/19900731029369A), Jul 31, 1990: Amtrbd BEDEBD4 (N853BF), Rosemount, MN, Substantial damage. Engine quit on downwind for runway. Landed off airport in tall corn. Had fuel line vapor lock. No fuel line cooler.

## 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 Francisco Boyd Jr/Sr BD-4 aircraft: https://openairdocs.org/model/francisco-boyd-jr-sr-bd-4/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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