| Tail Number / N-Number | N551SK |
| Manufacturer | HPH LTD |
| Model | GLASFLUGEL 304C |
| Year Built | 2002 |
| Manufacturer's Serial Number | 51-C |
| 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 | WALLACH JARI H |
| Street | 283 LAKEFRONT BLVD |
| City | BUFFALO |
| State | NY |
| Zip Code | 14202-4324 |
| Region | Eastern |
| County | Erie County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-07-10 |
| Certificate Issue Date | 2016-08-19 |
| Last Action Date | 2022-03-15 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 51602274 |
| Mode S Code Hex | A704BC |