Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4015.
| Tail Number / N-Number | N4015 |
| Manufacturer | AYER |
| Model | BENSEN/AYER B8J |
| Year Built | 1973 |
| Manufacturer's Serial Number | BA1923 |
| 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 |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SCHWEISS HAROLD |
| Street | BOX 1176 |
| City | CEYLON |
| State | MN |
| Zip Code | 56121 |
| Region | Great Lakes |
| Certificate Issue Date | 1973-09-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1976-09-02 |
| Mode S Code | 51131537 |
| Mode S Code Hex | A4B35F |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4015.
| Tail Number / N-Number | N4015 |
| Manufacturer | WACO |
| Model | 10 |
| Manufacturer's Serial Number | 827 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 111 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ADVANCE AIRCRAFT CO |
| Street | GENERAL DELIVERY |
| City | TROY |
| State | OH |
| Zip Code | 45373 |
| Region | Great Lakes |
| Certificate Issue Date | 1928-01-25 |
| Last Status | Valid Registration |
| Cancellation Date | 1928-02-16 |
| Mode S Code | 51131537 |
| Mode S Code Hex | A4B35F |