Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N2256Z.
| Tail Number / N-Number | N2256Z |
| Manufacturer | SIKORSKY |
| Model | S-58 |
| Year Built | 1958 |
| Manufacturer's Serial Number | 57-1707 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 14 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | R-1820 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 1,475 hp (1,100 kW) |
| Average Cruising Speed | 73 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MIDWEST HELICOPTER AIRWAYS INC |
| Street | MIDWEST HELIPORT |
| City | HINDALE |
| State | IL |
| Zip Code | 60521 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1980-03-27 |
| Certificate Issue Date | 1981-05-22 |
| Last Action Date | 1997-08-01 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-18 |
| Mode S Code | 50373326 |
| Mode S Code Hex | A1F6D6 |