Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N551R.
| Tail Number / N-Number | N551R |
| Manufacturer | HALE GREG |
| Model | MINI 500 |
| Manufacturer's Serial Number | 455 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | HALE GREG |
| Street | 5224 E 88TH ST |
| City | TULSA |
| State | OK |
| Zip Code | 74137-2922 |
| Country | US |
| Certificate Issue Date | 1998-05-14 |
| Last Action Date | 1998-05-14 |
| Last Status | Valid Registration |
| Cancellation Date | 2001-01-09 |
| Mode S Code | 51602231 |
| Mode S Code Hex | A70499 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N551R.
| Tail Number / N-Number | N551R |
| Manufacturer | GRIFFIN ROBERT A |
| Model | PITTS S1-C |
| Manufacturer's Serial Number | 001 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | GRIFFIN ROBERT ANDREW |
| Street | 290 DOLPHIN WAY |
| City | LAGUNA BEACH |
| State | CA |
| Zip Code | 92651 |
| Country | US |
| Certificate Issue Date | 1993-07-22 |
| Last Action Date | 1993-07-22 |
| Last Status | Valid Registration |
| Cancellation Date | 1995-03-02 |
| Mode S Code | 51602231 |
| Mode S Code Hex | A70499 |