Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4923.
| Tail Number / N-Number | N4923 |
| Manufacturer | ENSTROM |
| Model | F-28A |
| Year Built | 1971 |
| Manufacturer's Serial Number | 049 |
| Aircraft Type | Rotorcraft |
| 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 | 75 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | R J ENSTROM CORPORATION |
| Street | PO BOX 277 |
| City | MENOMINEE |
| State | MI |
| Zip Code | 49858 |
| Region | Great Lakes |
| Certificate Issue Date | 1971-02-05 |
| Last Status | Valid Registration |
| Cancellation Date | 1974-08-05 |
| Exported To | NEW ZEALAND |
| Mode S Code | 51415107 |
| Mode S Code Hex | A61A47 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4923.
| Tail Number / N-Number | N4923 |
| Manufacturer | LAIRD |
| Model | LCB |
| Manufacturer's Serial Number | 159 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not 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 |
| Type of Registrant | Corporation |
| Owner Name | BURKE AVIATION SERVICE |
| Street | P O BOX 1002 |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73159 |
| Region | Southwestern |
| Last Status | Valid Registration |
| Cancellation Date | 1941-08-15 |
| Mode S Code | 51415107 |
| Mode S Code Hex | A61A47 |