Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N54988.
| Tail Number / N-Number | N54988 |
| Manufacturer | PIPER |
| Model | PA-18-150 |
| Manufacturer's Serial Number | 187709034 |
| Aircraft Type | Fixed wing single engine |
| 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 |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | OX BOW RANCH INC |
| Street | PO BOX 1175 |
| City | BILLINGS |
| State | MT |
| Zip Code | 59103 |
| Region | Northwest Mountain |
| Certificate Issue Date | 1977-01-06 |
| Last Status | Valid Registration |
| Cancellation Date | 1977-09-19 |
| Exported To | CANADA |
| Mode S Code | 51576354 |
| Mode S Code Hex | A6FCEC |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N54988.
| Tail Number / N-Number | N54988 |
| Manufacturer | CESSNA |
| Model | T-50 |
| Manufacturer's Serial Number | 5640 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Individual |
| Owner Name | CHRISTENSEN HAKON |
| Street | PO BOX 413 |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99507 |
| Region | Alaskan |
| Certificate Issue Date | 1951-05-04 |
| Last Status | Valid Registration |
| Cancellation Date | 1951-11-15 |
| Mode S Code | 51576354 |
| Mode S Code Hex | A6FCEC |