| Tail Number / N-Number | N57L |
| Manufacturer | GLASFLUGEL |
| Model | 604 |
| Year Built | 1973 |
| Manufacturer's Serial Number | 8 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Not 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 | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | LEONARD STEVEN E |
| Street | 11117 WESTLAWN ST |
| City | WICHITA |
| State | KS |
| Zip Code | 67212-6411 |
| Region | Central |
| County | Sedgwick County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1993-08-13 |
| Certificate Issue Date | 1993-05-12 |
| Last Action Date | 2022-11-20 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 51646412 |
| Mode S Code Hex | A74D0A |