# N873Z: 1953 Sikorsky S-55B, registration cancelled 2018-05-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 21, 2018
- Status when cancelled: Revoked, canceled
- Airframe: [Sikorsky S-55B](https://openairdocs.org/model/sikorsky-s-55b) (registry code 8141604)
- Engine: [Wright C7BA series](https://openairdocs.org/engine/wright-c7ba-series) (registry code 67017)
- Data sheets: [TCDS 1H4](https://openairdocs.org/tcds/1H4) (OpenAirDocs)
- Serial number: 55372
- Year built: 1953
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Restricted, other
- Last registry action: January 14, 1977
- Mode S code: AC03BA
- Owner when cancelled: [Carson Hel New England Inc](https://openairdocs.org/faa-owner/CARSON%20HEL%20NEW%20ENGLAND%20INC)
- Location: [Boston, MA](https://openairdocs.org/faa-place/MA/Boston)
- Owner type: Corporation
- Owner's area on the map: 42.3584° N, 71.0598° W: Placed by OpenAirDocs: center of Boston, MA, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N873Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=873Z
- Page: https://openairdocs.org/deregistered/N873Z-2018-05-21

From the FAA registry file of October 31, 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-55B: https://openairdocs.org/model/sikorsky-s-55b.md

## 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 UNK64X2139](https://openairdocs.org/ntsb/UNK64X2139), Jun 5, 1964: Sikorsky S55 (N873Z), Holopaw, FL, substantial damage

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