# N68634: 1961 Sikorsky S-55, registration cancelled 2013-11-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 12, 2013
- Status when cancelled: Revoked, canceled
- Airframe: [Sikorsky S-55](https://openairdocs.org/model/sikorsky-s-55) (registry code 8141602)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Data sheets: [TCDS 1H4](https://openairdocs.org/tcds/1H4) (OpenAirDocs)
- Serial number: 55003
- Year built: 1961
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: September 24, 1970
- Last registry action: January 14, 1977
- Mode S code: A91C5F
- Owner when cancelled: [Helicopters Inc](https://openairdocs.org/faa-owner/HELICOPTERS%20INC)
- Location: [New York, NY](https://openairdocs.org/faa-place/NY/New%20York)
- Owner type: Corporation
- Owner's area on the map: 40.7586° N, 73.9679° W: Placed by OpenAirDocs at the center of ZIP code 10022, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N68634
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=68634
- Page: https://openairdocs.org/deregistered/N68634-2013-11-12

From the FAA registry file of November 12, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Sikorsky S-55: https://openairdocs.org/model/sikorsky-s-55.md

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