# N2305: 1953 Sikorsky S-55B, registration cancelled 2009-07-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 14, 2009
- Status when cancelled: Registration revoked
- 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: 138577
- Year built: 1953
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Restricted, other
- Certificate issued: September 16, 1975
- Last registry action: November 26, 1977
- Mode S code: A20B87
- Owner when cancelled: [Med Evac Corporation](https://openairdocs.org/faa-owner/MED%20EVAC%20CORPORATION)
- Location: [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa)
- Owner type: Corporation
- Owner's area on the map: 36.0973° N, 95.9232° W: Placed by OpenAirDocs at the center of ZIP code 74135, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N2305
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=2305
- Page: https://openairdocs.org/deregistered/N2305-2009-07-14

From the FAA registry file of October 29, 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 FTW76FPM01](https://openairdocs.org/ntsb/FTW76FPM01-201343), Oct 1, 1976: Sikorsky S-55B (N2305), Tulsa, OK, substantial damage

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19761001031179A](https://openairdocs.org/incident/19761001031179A), Oct 1, 1976: Skrsky S55B (N2305), Tulsa, OK, Substantial damage

## Other aircraft with N2305

- [Cancelled 1927-12-05](https://openairdocs.org/deregistered/N2305-1927-12-05): Advance WACO 9, S/N A-572, built 1925. Owner: [Byars E H Jr](https://openairdocs.org/faa-owner/BYARS%20E%20H%20JR), [Lincolnton, NC](https://openairdocs.org/faa-place/NC/Lincolnton)

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