Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N521MB.
| Tail Number / N-Number | N521MB |
| Manufacturer | MBB |
| Model | BK 117 A-3 |
| Manufacturer's Serial Number | 7093 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Last Action Date | 1986-01-14 |
| Last Status | N-Number assigned as import but has not been registered that is pending cancellation |
| Cancellation Date | 2011-03-17 |
| Mode S Code | 51506672 |
| Mode S Code Hex | A68DBA |