| Tail Number / N-Number | N523EF |
| Manufacturer | BEECH |
| Model | B-60 |
| Year Built | 1979 |
| Manufacturer's Serial Number | P-523 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TI0-541 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 310 hp (231 kW) |
| Total Horsepower | 620 hp (463 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | STEFENELLI AVIATION N-TR INC TRUSTEE |
| Street | SCHLOSSBERG 8 |
| City | ATTERSEE |
| Zip Code | A-4864 |
| Region | European |
| Country | AT |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-11-14 |
| Certificate Issue Date | 2023-02-08 |
| Last Action Date | 2023-02-08 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 51512175 |
| Mode S Code Hex | A6947D |