Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N556D.
| Tail Number / N-Number | N556D |
| Manufacturer | KAMAN |
| Model | HH-43B |
| Year Built | 1959 |
| Manufacturer's Serial Number | 37 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | T53-L-13 |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 1,400 hp (1,044 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Individual |
| Owner Name | JORGENSON GARY N |
| Street | 244 PONDEROSA LN |
| City | OVANDO |
| State | MT |
| Zip Code | 59854-9657 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 2004-03-31 |
| Certificate Issue Date | 1991-01-10 |
| Last Action Date | 2012-08-29 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2014-09-30 |
| Mode S Code | 51613000 |
| Mode S Code Hex | A71600 |