| Tail Number / N-Number | N40121 |
| Manufacturer | CLASSIC AIRCRAFT CORP |
| Model | WACO YMF |
| Year Built | 1990 |
| Manufacturer's Serial Number | F5029 |
| 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) |
| Engine Manufacturer | JACOBS |
| Engine Model | R755B SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 275 hp (205 kW) |
| Type of Registrant | LLC |
| Owner Name | POSSUM WORKS LLC |
| Street | PO BOX 1200 |
| City | GRAHAM |
| State | TX |
| Zip Code | 76450-1200 |
| Region | Southwestern |
| County | Young County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1991-04-16 |
| Certificate Issue Date | 2020-05-29 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 51131420 |
| Mode S Code Hex | A4B310 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N40121.
| Tail Number / N-Number | N40121 |
| Manufacturer | STINSON |
| Model | 108-1 |
| Manufacturer's Serial Number | 108-51 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 84 miles per hour |
| Type of Registrant | Individual |
| Owner Name | JONES JAMES E |
| Street | 7109 OLD HARBOR AVE |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99504 |
| Region | Alaskan |
| County | Young County |
| Certificate Issue Date | 1971-06-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1972-11-15 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N40121.
| Tail Number / N-Number | N40121 |
| Manufacturer | AYRES CORPORATION |
| Model | S2R-T34 |
| Manufacturer's Serial Number | 6049 |
| 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 |
| County | Young County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1988-06-06 |