Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N54978.
| Tail Number / N-Number | N54978 |
| Manufacturer | PIPER |
| Model | PA-31T |
| Manufacturer's Serial Number | 31T7620004 |
| Aircraft Type | Fixed wing multi engine |
| 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 |
| Average Cruising Speed | 162 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PIPER AIRCRAFT CO |
| Street | 820 EAST BALD EAGLE ST |
| City | LOCK HAVEN |
| State | PA |
| Zip Code | 17745 |
| Region | Eastern |
| Certificate Issue Date | 1975-10-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1975-10-02 |
| Exported To | CANADA |
| Mode S Code | 51576311 |
| Mode S Code Hex | A6FCC9 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N54978.
| Tail Number / N-Number | N54978 |
| Manufacturer | CESSNA |
| Model | T-50 |
| Manufacturer's Serial Number | 5993 |
| 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 | Partnership |
| Owner Name | HELSING & MATTES |
| Street | SKY HARBOR ARPT |
| City | NORTHBROOK |
| State | IL |
| Zip Code | 60062 |
| Region | Great Lakes |
| Certificate Issue Date | 1947-07-30 |
| Last Status | Valid Registration |
| Cancellation Date | 1948-03-10 |
| Mode S Code | 51576311 |
| Mode S Code Hex | A6FCC9 |