# N7936C: 1958 Sikorsky S-58

- Status: Valid registration
- Airframe: [Sikorsky S-58](https://openairdocs.org/model/sikorsky-s-58) (registry code 8141801, 14 seats)
- Engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020)
- Data sheets: [TCDS 1H11](https://openairdocs.org/tcds/1H11) (Centerpointe Aerospace Inc.) (OpenAirDocs)
- Serial number: 58996
- Year built: 1958
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Restricted, other
- Airworthiness date: November 1, 1978
- Certificate issued: June 10, 2015
- Expires: June 30, 2028
- Mode S code: AAC657
- Registered owner: [Vi 1 LLC](https://openairdocs.org/faa-owner/VI%201%20LLC)
- Location: [Brewster, WA](https://openairdocs.org/faa-place/WA/Brewster)
- Owner type: LLC
- Owner's area on the map: 48.1315° N, 119.8060° W: Placed by OpenAirDocs at the center of ZIP code 98812, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=7936C
- Page: https://openairdocs.org/aircraft/N7936C

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 Wright R-1820 model are included.

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

### Matched by airframe (Sikorsky S-58)

None in force.

### Matched by engine (Wright R-1820 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N7936C.

## FAA accident and incident reports

None matched to N7936C.

## 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 (Sikorsky S-58)

- [STC SH268WE](https://openairdocs.org/stc/SH268WE): Installation of stainless steel fire shields around aluminum engine mount fittings (P/N S1620-61435) of HSS, HUS, H-34 military series helicopters. (S-58 SERIES Military versions HSS, HUS, H-34). TBM, Inc

## Related

- Other Sikorsky S-58 aircraft: https://openairdocs.org/model/sikorsky-s-58/aircraft.md
- The Wright R-1820 series engine: https://openairdocs.org/engine/wright-r-1820-series.md

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