| Tail Number / N-Number | N3621T |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-36 |
| Year Built | 1981 |
| Manufacturer's Serial Number | 40 |
| 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 |
| Type of Registrant | Individual |
| Owner Name | BUTLER THOMAS K |
| Street | 8504 MILLWAY DR |
| City | AUSTIN |
| State | TX |
| Zip Code | 78757-7543 |
| Region | Southwestern |
| County | Travis County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-12-09 |
| Certificate Issue Date | 1997-12-19 |
| Last Action Date | 2022-03-08 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 51013107 |
| Mode S Code Hex | A41647 |