Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N9173S.
| Tail Number / N-Number | N9173S |
| Manufacturer | GEDDES E T |
| Model | COMMANDER 503 |
| Year Built | 1988 |
| Manufacturer's Serial Number | ETG-1 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | GEDDES EDWARD T |
| Street | 486 S RACCOON ROAD E-45 |
| City | AUSTINTOWN |
| State | OH |
| Zip Code | 44515 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1988-01-12 |
| Certificate Issue Date | 1987-10-16 |
| Last Action Date | 1991-03-23 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-07-15 |
| Mode S Code | 53131576 |
| Mode S Code Hex | ACB37E |