| Tail Number / N-Number | N139BG |
| Manufacturer | BURKHART GROB |
| Model | G 103 TWIN II |
| Year Built | 1984 |
| Manufacturer's Serial Number | 33901-K-139 |
| Aircraft Type | Glider |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Corporation |
| Owner Name | PHILADELPHIA GLIDER COUNCIL INC |
| Street | PO BOX 122 |
| City | HILLTOWN |
| State | PA |
| Zip Code | 18927-0122 |
| Region | Eastern |
| County | Bucks County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1984-12-19 |
| Certificate Issue Date | 2007-02-12 |
| Last Action Date | 2022-03-23 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 50116300 |
| Mode S Code Hex | A09CC0 |