# N81973: 2008 Sorensen Danny S BF9-2

- Status: Valid registration
- Airframe: [Sorensen Danny S BF9-2](https://openairdocs.org/model/sorensen-danny-s-bf9-2) (registry code 05622UI, 2 seats)
- Engine: [Vedeneyev M14P](https://openairdocs.org/engine/vedeneyev-m14p) (registry code 63601)
- Serial number: 24601-001
- Year built: 2008
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 24, 2008
- Certificate issued: April 11, 2007
- Expires: January 31, 2030
- Mode S code: AB2E34
- Registered owners: [Sorensen Danny S](https://openairdocs.org/faa-owner/SORENSEN%20DANNY%20S), [Sorensen Allyn H](https://openairdocs.org/faa-owner/SORENSEN%20ALLYN%20H)
- Location: [Bountiful, UT](https://openairdocs.org/faa-place/UT/Bountiful)
- Owner type: Co-owned
- Owner's area on the map: 40.8732° N, 111.8351° W: Placed by OpenAirDocs at the center of ZIP code 84010, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=81973
- Page: https://openairdocs.org/aircraft/N81973

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 (Sorensen Danny S BF9-2)

None in force.

### Matched by engine (Vedeneyev M14P)

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 GAA18CA330](https://openairdocs.org/ntsb/GAA18CA330), May 31, 2018: Sorensen Danny S BF9 2 (N81973), Evanston, WY, substantial damage. Probable cause: The pilot’s failure to fuel the biplane’s main fuel tank before the flight and his inadequate preflight inspection, during which he did not verify the fuel quantity, which resulted in fuel exhaustion

## 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 20180531006429A](https://openairdocs.org/incident/20180531006429A), May 31, 2018: Sorensen Danny S BF9-2 (N81973), Evanston, WY, Substantial damage. On 5/31/2018 at 1700 MST, aircraft N81973 had descended onto I-80 heading westbound just east of Evanston, WY. The aircraft struck the sleeper cab of a moving…

## 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 N81973

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N81973 before.

- [Cancelled 2007-02-01](https://openairdocs.org/deregistered/N81973-2007-02-01): Aeronca 7AC, S/N 7AC598, built 1946. Registration revoked. Owner: [Travel Air Flg Club Inc](https://openairdocs.org/faa-owner/TRAVEL%20AIR%20FLG%20CLUB%20INC), [Woods Cross, UT](https://openairdocs.org/faa-place/UT/Woods%20Cross)

## Related

- Other Sorensen Danny S BF9-2 aircraft: https://openairdocs.org/model/sorensen-danny-s-bf9-2/aircraft.md
- The Vedeneyev M14P engine: https://openairdocs.org/engine/vedeneyev-m14p.md

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