# Heath Avn B4

- Type: Engine model (FAA registry)
- Registry code: 32501
- Manufacturer (registry): HEATH AVN
- Model: B4
- Engine type: Reciprocating
- Power: 25 hp
- Data sheet: [TCDS Group 4-3](https://openairdocs.org/tcds/Group%204-3) (OpenAirDocs)
- Holder: Heath Aviation Company
- Installed in: 2 registered aircraft
- Page: https://openairdocs.org/engine/heath-avn-b4

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (2)

- [N538](https://openairdocs.org/aircraft/N538): [Western Antique Aeroplane & Automobile Museum](https://openairdocs.org/faa-owner/WESTERN%20ANTIQUE%20AEROPLANE%20%26%20AUTOMOBILE%20MUSEUM), [Hood River, OR](https://openairdocs.org/faa-place/OR/Hood%20River), built 2007, S/N 101
- [N724K](https://openairdocs.org/aircraft/N724K): [Buerk Christian E](https://openairdocs.org/faa-owner/BUERK%20CHRISTIAN%20E), [West Ossipee, NH](https://openairdocs.org/faa-place/NH/West%20Ossipee), built 1929, S/N 25

## 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 CHI08LA123](https://openairdocs.org/ntsb/CHI08LA123), May 5, 2008: Dickenson Bathtub (N538), Broadhead, WI, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain adequate airspeed during approach, which resulted in an aerodynamic stall.

## 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 20080505835559A](https://openairdocs.org/incident/20080505835559A), May 5, 2008: Dicken BATHTUB (N538), Brodhead, WI, Destroyed, 1 fatal. (-23) On may 5, 2008, at approximately 1700 cdlt the pilot of an amateur built aircraft, dickerson Bathtub, on final approach to runway 03 at broadhead…

## STCs that may be installed (OpenAirDocs) (1)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC

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