Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6421M.
| Tail Number / N-Number | N6421M |
| Manufacturer | STINSON |
| Model | 108-3 |
| Manufacturer's Serial Number | 108-4421 |
| 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 | Corporation |
| Owner Name | C B MCMAHAN AERIAL |
| Street | 517 LAKESHORE DRIVE |
| City | MONROE |
| State | LA |
| Zip Code | 71201 |
| Region | Southwestern |
| Certificate Issue Date | 1966-03-03 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-02-02 |
| Mode S Code | 52067460 |
| Mode S Code Hex | A86F30 |