Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4550Z.
| Tail Number / N-Number | N4550Z |
| Manufacturer | PIPER |
| Model | PA-22-108 |
| Year Built | 1961 |
| Manufacturer's Serial Number | 22-8055 |
| 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 | 94 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HARKINS FRANC C |
| Street | W 808 12TH AVE |
| City | SPOKANE |
| State | WA |
| Zip Code | 99204 |
| Region | Northwest Mountain |
| Certificate Issue Date | 1984-08-08 |
| Last Status | Valid Registration |
| Cancellation Date | 1984-08-08 |
| Exported To | CANADA |
| Mode S Code | 51303437 |
| Mode S Code Hex | A5871F |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4550Z.
| Tail Number / N-Number | N4550Z |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-502 |
| Manufacturer's Serial Number | 5020130 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 | Corporation |
| Owner Name | LANE AVIATION INCC |
| Street | PO BOX 432 |
| City | ROSENBERG |
| State | TX |
| Zip Code | 77471-0432 |
| Country | US |
| Last Action Date | 1996-04-17 |
| Last Status | Valid Registration |
| Cancellation Date | 1996-08-13 |
| Exported To | AUSTRALIA |
| Mode S Code | 51303437 |
| Mode S Code Hex | A5871F |