Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6821M.
| Tail Number / N-Number | N6821M |
| Manufacturer | UNIVERSAL STINSON |
| Model | 108-3 |
| Manufacturer's Serial Number | 108-4821 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 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 | Co-Ownership |
| Owner Name | JOHN T LYONS |
| Street | 3655 WEST 153 PLACE |
| City | MIDLOTHIAN |
| State | IL |
| Zip Code | 60445 |
| Region | Great Lakes |
| Certificate Issue Date | 1965-03-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1967-09-01 |
| Mode S Code | 52206454 |
| Mode S Code Hex | A90D2C |