| Tail Number / N-Number | N278AS |
| Manufacturer | PILATUS |
| Model | B4-PC11AF |
| Manufacturer's Serial Number | 251 |
| Aircraft Type | Glider |
| 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 | 0 engines |
| Type of Registrant | Individual |
| Owner Name | BOCK BRYCE K |
| Street | 104 N HAMLIN CT |
| City | LONGWOOD |
| State | FL |
| Zip Code | 32750-4014 |
| Region | Southern |
| County | Seminole County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-05-19 |
| Certificate Issue Date | 2011-07-08 |
| Last Action Date | 2020-04-13 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 50542105 |
| Mode S Code Hex | A2C445 |