# N735WS: Sikorsky SH-3H

- Status: Valid registration
- Airframe: [Sikorsky SH-3H](https://openairdocs.org/model/sikorsky-sh-3h) (registry code 8141829, 28 seats)
- Serial number: 149735
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Certificate issued: March 24, 2021
- Expires: March 31, 2028
- Mode S code: A9DFA3
- Registered owner: [Carson Helicopters Inc](https://openairdocs.org/faa-owner/CARSON%20HELICOPTERS%20INC)
- Location: [Perkasie, PA](https://openairdocs.org/faa-place/PA/Perkasie)
- Owner type: Corporation
- Owner's area on the map: 40.3962° N, 75.2312° W: Placed by OpenAirDocs at the center of ZIP code 18944, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=735WS
- Page: https://openairdocs.org/aircraft/N735WS

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): 3 in force

### Matched by airframe (Sikorsky SH-3H)

- [AD 2026-15-17](https://openairdocs.org/ad/2026-15-17): Main Rotor Gearbox · Glacier Helicopter CH-3E, S-61A, S-61D and 12 more. Effective Sep 10, 2026
- [AD 2026-11-05](https://openairdocs.org/ad/2026-11-05): Rotorcraft flight control; Rotorcraft servo system · Carson Helicopters S-61L, SH-3H, CH-3E and 11 more. Effective Jul 9, 2026
- [AD 2021-10-16](https://openairdocs.org/ad/2021-10-16): Engine/Transmission Coupling · Carson Helicopters S-61L, SH-3H, SH-3H and 6 more. Effective Jul 1, 2021

### Historical (superseded or no longer in force)

- [AD 2015-20-12](https://openairdocs.org/ad/2015-20-12) (historical): Main Rotor Gearbox · Carson Helicopters SH-3H, SH-3H, CH-3E and 13 more. Effective Nov 24, 2015

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N735WS.

## FAA accident and incident reports

None matched to N735WS.

## 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 N735WS

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N735WS before.

- [Cancelled 1997-12-15](https://openairdocs.org/deregistered/N735WS-1997-12-15): Cessna TU206G, S/N U20604975. Exported to Mexico. Owner: [Lewis Alfred R](https://openairdocs.org/faa-owner/LEWIS%20ALFRED%20R), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia)

## Related

- Other Sikorsky SH-3H aircraft: https://openairdocs.org/model/sikorsky-sh-3h/aircraft.md

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