| Tail Number / N-Number | N4121J |
| Manufacturer | PIPER |
| Model | PA-28-140 |
| Year Built | 1966 |
| Manufacturer's Serial Number | 28-22439 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 107 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | YILMAZ ERAY |
| Other Names |
|
| Street | 2800 E WHITESTONE BLVD STE 120 PMB 175 |
| City | CEDAR PARK |
| State | TX |
| Zip Code | 78613-7275 |
| Region | Southwestern |
| County | Williamson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1966-12-19 |
| Certificate Issue Date | 2022-11-17 |
| Last Action Date | 2022-11-17 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 51157022 |
| Mode S Code Hex | A4DE12 |