# N90804: Sikorsky R-4B, registration cancelled 1949-07-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 5, 1949
- Status when cancelled: Valid registration
- Airframe: [Sikorsky R-4B](https://openairdocs.org/model/sikorsky-r-4b) (registry code 8140102)
- Data sheets: [TCDS LTC-7](https://openairdocs.org/tcds/LTC-7) (OpenAirDocs)
- Serial number: 97
- Type of aircraft: Rotorcraft
- Certificate issued: July 18, 1947
- Mode S code: AC8F59
- Owner when cancelled: [Helicopter Service Inc](https://openairdocs.org/faa-owner/HELICOPTER%20SERVICE%20INC)
- Location: [Camarillo, CA](https://openairdocs.org/faa-place/CA/Camarillo)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N90804
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=90804
- Page: https://openairdocs.org/deregistered/N90804-1949-07-05

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 R-4B: https://openairdocs.org/model/sikorsky-r-4b.md

## Other aircraft with N90804

- [Registered now](https://openairdocs.org/aircraft/N90804): Craft Aerospace Tech CHANGYURAPTOR, S/N SN0003
- [Cancelled 2006-08-17](https://openairdocs.org/deregistered/N90804-2006-08-17): Douglas DC-7C, S/N 45116, built 1956. Triennial form not returned. Owner: [T And G Aviation Inc](https://openairdocs.org/faa-owner/T%20AND%20G%20AVIATION%20INC), [Chandler, AZ](https://openairdocs.org/faa-place/AZ/Chandler)

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