| Tail Number / N-Number | N554JH |
| Manufacturer | NOORDYN |
| Model | HARVARD MARK II |
| Manufacturer's Serial Number | AJ554 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | LLC |
| Owner Name | SYF LLC |
| Street | PO BOX 1336 |
| City | OKMULGEE |
| State | OK |
| Zip Code | 74447-1336 |
| Region | Southwestern |
| County | Okmulgee County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2016-07-18 |
| Last Action Date | 2022-02-16 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 51607427 |
| Mode S Code Hex | A70F17 |