| Tail Number / N-Number | N504DH |
| Manufacturer | SIKORSKY |
| Model | S58E |
| Year Built | 1958 |
| Manufacturer's Serial Number | 58814 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 14 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | R-1820 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 1,475 hp (1,100 kW) |
| Average Cruising Speed | 81 miles per hour |
| Type of Registrant | Individual |
| Owner Name | VAN SURDAM JOHN R |
| Street | 130 STEARMAN LN |
| City | SENECA |
| State | SC |
| Zip Code | 29678-2059 |
| Region | Southern |
| County | Oconee County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Multiple |
| Airworthiness Date | 1990-03-16 |
| Certificate Issue Date | 2001-02-28 |
| Last Action Date | 2022-02-21 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 51444437 |
| Mode S Code Hex | A6491F |