| Tail Number / N-Number | N616Z |
| Manufacturer | SIKORSKY |
| Model | S55B |
| Year Built | 1957 |
| Manufacturer's Serial Number | 57-1616 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 78 miles per hour |
| Type of Registrant | LLC |
| Owner Name | SIERRA AERONAUTICS LLC |
| Street | 40 SULPHUR SPRINGS CHURCH RD |
| City | FRANKLIN |
| State | KY |
| Zip Code | 42134 |
| Region | Central |
| County | Simpson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Date | 1980-11-26 |
| Certificate Issue Date | 2021-09-21 |
| Last Action Date | 2021-09-21 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 52003507 |
| Mode S Code Hex | A80747 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N616Z.
| Tail Number / N-Number | N616Z |
| Manufacturer | CURTISS WRIGHT |
| Model | C-46 |
| Manufacturer's Serial Number | 22590 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 65 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 180 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ZANTOP AIR TRANSPORT INC |
| Street | DETROIT METROPOLITAN AIRPORT |
| City | INKSTER |
| State | MI |
| Zip Code | 48033 |
| Region | Great Lakes |
| County | Simpson County |
| Certificate Issue Date | 1959-07-24 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-06-26 |