Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4939X.
| Tail Number / N-Number | N4939X |
| Manufacturer | ROCKWELL INTERNATIONAL |
| Model | S-2R |
| Manufacturer's Serial Number | 2100R |
| 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 | ROCKWELL INTERNATIONAL |
| Street | COMMANDER AIRCRAFT DIVISION PO BOX 1748 |
| City | ALBANY |
| State | GA |
| Zip Code | 31702 |
| Region | Southern |
| Certificate Issue Date | 1974-11-21 |
| Last Status | Valid Registration |
| Cancellation Date | 1974-11-27 |
| Exported To | ISRAEL |
| Mode S Code | 51417346 |
| Mode S Code Hex | A61EE6 |