| Tail Number / N-Number | N558W |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2008 |
| Manufacturer's Serial Number | 12299 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540-AE1A5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | LLC |
| Owner Name | MANTICORE LLC |
| Street | PO BOX 1096 |
| City | ALTON |
| State | NH |
| Zip Code | 03809-1096 |
| Region | New England |
| County | Belknap County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2008-05-20 |
| Certificate Issue Date | 2017-07-24 |
| Last Action Date | 2021-10-19 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 51617427 |
| Mode S Code Hex | A71F17 |