# N74817: 1953 Sikorsky HO5-S1

- Status: Valid registration
- Airframe: [Sikorsky HO5-S1](https://openairdocs.org/model/sikorsky-ho5-s1) (registry code 8141308, 4 seats)
- Engine: [Franklin 6V6 series](https://openairdocs.org/engine/franklin-6v6-series) (registry code 27036)
- Data sheets: [TCDS 1H2](https://openairdocs.org/tcds/1H2) (Vertical Aviation Technologies Inc.) (OpenAirDocs)
- Serial number: 130122
- Year built: 1953
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: December 10, 1964
- Certificate issued: April 2, 2012
- Expires: April 30, 2028
- Mode S code: AA12DD
- Registered owner: [Anduze Alejandro](https://openairdocs.org/faa-owner/ANDUZE%20ALEJANDRO)
- Location: [Royal Palm Beach, FL](https://openairdocs.org/faa-place/FL/Royal%20Palm%20Beach)
- Owner type: Individual
- Owner's area on the map: 26.7152° N, 80.2038° W: Placed by OpenAirDocs at the center of ZIP code 33411, 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=74817
- Page: https://openairdocs.org/aircraft/N74817

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. The registry lists only the engine series, so ADs for every Franklin 6V6 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Sikorsky HO5-S1)

None in force.

### Matched by engine (Franklin 6V6 series)

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 JAM  B0725](https://openairdocs.org/ntsb/JAM%20%20B0725), Jun 28, 1967: Sikorsky S-52-3 (N74817), Pt.Antono (Atlantic Ocean), substantial damage

## FAA accident and incident reports

None matched to N74817.

## 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 Sikorsky HO5-S1 aircraft: https://openairdocs.org/model/sikorsky-ho5-s1/aircraft.md
- The Franklin 6V6 series engine: https://openairdocs.org/engine/franklin-6v6-series.md

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