| Tail Number / N-Number | N9123 |
| Manufacturer | STANGEL GENE |
| Model | GLASAIR IIS-RG |
| Year Built | 2008 |
| Manufacturer's Serial Number | 2128 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-360-A1A |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Kit Manufacturer | STODDARD HAMILTON |
| Kit Model | SH2R GLASAIR II-SRG |
| Type of Registrant | Individual |
| Owner Name | KOEHN MICHAEL S |
| Street | 315 108TH AVE SE |
| City | BELLEVUE |
| State | WA |
| Zip Code | 98004-6208 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2008-11-01 |
| Certificate Issue Date | 2019-10-10 |
| Last Action Date | 2019-10-10 |
| Expiration Date | 2022-10-31 |
| Status | Registration Expired - Pending Cancellation |
| Mode S Code | 53120332 |
| Mode S Code Hex | ACA0DA |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N9123.
| Tail Number / N-Number | N9123 |
| Manufacturer | NEW STANDARD |
| Model | D-25 |
| Manufacturer's Serial Number | 117 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 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 | PENNSYLVANIA AIR LINES INC |
| Street | ALLEGHENY COUNTY AIRPORT |
| City | MCKEESPORT |
| State | PA |
| Zip Code | 15134 |
| Region | Eastern |
| County | King County |
| Last Status | Valid Registration |
| Cancellation Date | 1931-12-01 |