Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N8557K.
| Tail Number / N-Number | N8557K |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R22 ALPHA |
| Manufacturer's Serial Number | 0461 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | MILLS BRANGUS RANCH |
| Street | P O DRAWER 489 |
| City | MCALESTER |
| State | OK |
| Zip Code | 74502 |
| Country | US |
| Certificate Issue Date | 1985-09-10 |
| Last Action Date | 1991-01-31 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1991-04-18 |
| Mode S Code | 52736502 |
| Mode S Code Hex | ABBD42 |