| Tail Number / N-Number | N621MG |
| Manufacturer | SCHLEICHER |
| Model | ASK-21 |
| Year Built | 1985 |
| Manufacturer's Serial Number | 21254 |
| 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 | MID-GEORGIA SOARING ASSOCIATION |
| Street | 525 TOWLER ST |
| City | MONROE |
| State | GA |
| Zip Code | 30655-2848 |
| Region | Southern |
| County | Walton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2004-08-09 |
| Certificate Issue Date | 2002-05-08 |
| Last Action Date | 2022-11-20 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 52015416 |
| Mode S Code Hex | A81B0E |