| Tail Number / N-Number | N1139S |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-26E |
| Year Built | 1972 |
| Manufacturer's Serial Number | 519 |
| 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) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 57 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | FAULT LINE FLYERS INC |
| Street | PO BOX 1428 |
| City | LEANDER |
| State | TX |
| Zip Code | 78646-1428 |
| Region | Southwestern |
| County | Williamson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1972-03-10 |
| Certificate Issue Date | 1994-08-15 |
| Last Action Date | 2020-10-19 |
| Expiration Date | 2028-02-29 |
| Status | Valid Registration |
| Mode S Code | 50035374 |
| Mode S Code Hex | A03AFC |