Helicopters/SIKORSKY/S-55B/N31611

N31611 — 1956 SIKORSKY S-55B

Registry aircraft record

✦FAA Registry Record

N-NumberN31611

Serial number56-4255

ManufacturerSIKORSKY

ModelS-55B

Year built1956

RegistrantSIERRA AERONAUTICS LLC

Registry statusRegistered (V)

RegistrationRegistration current · expires 30 Sep 2028

AirworthinessAirworthiness certificate on file

Last action2023-06-10

Source: FAA (United States) · updated Oct 22, 2026

One of 9 active SIKORSKY S-55Bs across the 4 registries BuyJet tracks. Registry record last updated Oct 22, 2026.

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About N31611

N31611 is a 1956 SIKORSKY S-55B registered with the FAA (United States).

Yes — the FAA (United States) lists N31611 as registered (registry data updated 2026-10-22).

The SIKORSKY S-55B has 12 seats and 1 engine.