Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4927E.
| Tail Number / N-Number | N4927E |
| Manufacturer | SIKORSKY |
| Model | S-51 |
| Manufacturer's Serial Number | 51214 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 450 hp (336 kW) |
| Average Cruising Speed | 77 miles per hour |
| Type of Registrant | Individual |
| Owner Name | PETKOW LOUIS H |
| Street | PO BOX 5241 |
| City | SAN PEDRO |
| State | CA |
| Zip Code | 90733 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1961-03-24 |
| Certificate Issue Date | 1981-06-16 |
| Last Action Date | 1996-08-07 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2012-12-18 |
| Mode S Code | 51415330 |
| Mode S Code Hex | A61AD8 |