| Tail Number / N-Number | N618CK |
| Manufacturer | SIKORSKY |
| Model | S-61NM |
| Manufacturer's Serial Number | 61454 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 28 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | GE |
| Engine Model | CT58-140-2 |
| Engine Type | Turbo-shaft |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,400 hp (1,044 kW) |
| Total Horsepower | 2,800 hp (2,089 kW) |
| Type of Registrant | Corporation |
| Owner Name | CROMAN CORP |
| Street | 801 AVENUE C |
| City | WHITE CITY |
| State | OR |
| Zip Code | 97503-1082 |
| Region | Northwest Mountain |
| County | Jackson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2013-06-03 |
| Certificate Issue Date | 2013-04-19 |
| Last Action Date | 2021-11-17 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 52006262 |
| Mode S Code Hex | A80CB2 |