| Tail Number / N-Number | N999GS |
| Type of Reservation | Fee paid, notice for expiration sent |
| Reserving Party Name | GERHARD M SONTHEIMER |
| Street | STOPPELFELD 7 |
| City | HAMBURG |
| State | DE |
| Zip Code | 22143 |
| Date Reserved | 2019-02-25 |
| Expiration Date | 2022-12-25 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N999GS.
| Tail Number / N-Number | N999GS |
| Manufacturer | SMOKER GLEN E |
| Model | ROTORWAY EXEC |
| Year Built | 1988 |
| Manufacturer's Serial Number | 32958 |
| Aircraft Type | Rotorcraft |
| 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) |
| Engine Manufacturer | ROTORWAY |
| Engine Model | RW152 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Type of Registrant | Individual |
| Owner Name | SMOKER GLEN E |
| Street | 76 BROWNING RD |
| City | LANCASTER |
| State | PA |
| Zip Code | 17602 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-09-20 |
| Certificate Issue Date | 1989-08-01 |
| Last Action Date | 1992-09-19 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2012-10-19 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N999GS.
| Tail Number / N-Number | N999GS |
| Manufacturer | CESSNA |
| Model | 150M |
| Manufacturer's Serial Number | 15076321 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 |
| Average Cruising Speed | 81 miles per hour |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1989-02-24 |