Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N8557B.
| Tail Number / N-Number | N8557B |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R22 ALPHA |
| Manufacturer's Serial Number | 0459 |
| 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 |
| Last Status | N-Number Assigned – but has not yet been registered |
| Mode S Code | 52736472 |
| Mode S Code Hex | ABBD3A |