| Tail Number / N-Number | N138AR |
| Manufacturer | SIKORSKY |
| Model | S-61N |
| Year Built | 1977 |
| Manufacturer's Serial Number | 61767 |
| 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 SERIES |
| Engine Type | Turbo-shaft |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,350 hp (1,007 kW) |
| Total Horsepower | 2,700 hp (2,014 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AMENTUM SERVICES INC |
| Street | 20501 SENECA MEADOWS PKWY STE 300 |
| City | GERMANTOWN |
| State | MD |
| Zip Code | 20876-7019 |
| Region | Eastern |
| County | Montgomery County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1995-03-07 |
| Certificate Issue Date | 2022-02-07 |
| Last Action Date | 2022-02-07 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 50114371 |
| Mode S Code Hex | A098F9 |