# N972HP: Boeing/Hawkins And Powers HP-B-377

- Status: Valid registration
- Airframe: [Boeing/Hawkins And Powers HP-B-377](https://openairdocs.org/model/boeing-hawkins-and-powers-hp-b-377) (registry code 1381603, 3 seats)
- Engine: [Pratt & Whitney R-4360](https://openairdocs.org/engine/pratt-whitney-r-4360) (registry code 52120)
- Data sheets: [TCDS A5NM](https://openairdocs.org/tcds/A5NM) (Hawkins & Powers Aviation Inc.) (OpenAirDocs)
- Serial number: 53-350
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Special flight permit
- Airworthiness date: July 15, 1991
- Certificate issued: August 17, 2017
- Expires: August 31, 2027
- Mode S code: AD8BD0
- Registered owners: [Sheppard Harold Jr DBA](https://openairdocs.org/faa-owner/SHEPPARD%20HAROLD%20JR%20DBA), [Sheppard Trucking](https://openairdocs.org/faa-owner/SHEPPARD%20TRUCKING)
- Location: [Riverton, WY](https://openairdocs.org/faa-place/WY/Riverton)
- Owner type: Individual
- Owner's area on the map: 43.0278° N, 108.2379° W: Placed by OpenAirDocs at the center of ZIP code 82501, within about 15 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=972HP
- Page: https://openairdocs.org/aircraft/N972HP

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 (Boeing/Hawkins And Powers HP-B-377)

None in force.

### Matched by engine (Pratt & Whitney R-4360)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N972HP.

## FAA accident and incident reports

None matched to N972HP.

## 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) (1)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Boeing/Hawkins And Powers HP-B-377)

- [STC SA3594NM](https://openairdocs.org/stc/SA3594NM): Increase in the zero fuel weight of the Hawkins & Powers HP-B-377 airplane. Hawkins & Powers Avn Inc

## Related

- Other Boeing/Hawkins And Powers HP-B-377 aircraft: https://openairdocs.org/model/boeing-hawkins-and-powers-hp-b-377/aircraft.md
- The Pratt & Whitney R-4360 engine: https://openairdocs.org/engine/pratt-whitney-r-4360.md

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