Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4227S.
| Tail Number / N-Number | N4227S |
| Manufacturer | SIKORSKY |
| Model | S-61A-4 |
| Year Built | 1977 |
| Manufacturer's Serial Number | 61785 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 28 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | UNITED TECHNOLOGIES CORP |
| Street | MAIN ST |
| City | STRATFORD |
| State | CT |
| Zip Code | 06602 |
| Region | New England |
| Certificate Issue Date | 1976-11-04 |
| Last Status | Valid Registration |
| Cancellation Date | 1977-05-11 |
| Exported To | MALAYSIA |
| Mode S Code | 51203153 |
| Mode S Code Hex | A5066B |