| Tail Number / N-Number | N139TR |
| Manufacturer | AS+ LTD |
| Model | AC 4 |
| Year Built | 1999 |
| Manufacturer's Serial Number | 39 |
| 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 | REYNOLDS TERRY M |
| Street | 147 GILES HOLLOW RD |
| City | FAYETTEVILLE |
| State | TN |
| Zip Code | 37334-6503 |
| Region | Central |
| County | Lincoln County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1999-10-14 |
| Certificate Issue Date | 1999-09-15 |
| Last Action Date | 2021-05-12 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 50117131 |
| Mode S Code Hex | A09E59 |