| Tail Number / N-Number | N421JS |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1975 |
| Manufacturer's Serial Number | 421C0033 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | GTSIO-520-C |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 340 hp (254 kW) |
| Total Horsepower | 680 hp (507 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BANK OF UTAH TRUSTEE |
| Street | 50 S 200 E STE 110 |
| City | SALT LAKE CITY |
| State | UT |
| Zip Code | 84111-1617 |
| Region | Northwest Mountain |
| County | Salt Lake County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1976-01-26 |
| Certificate Issue Date | 2021-04-23 |
| Last Action Date | 2021-05-20 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 51200057 |
| Mode S Code Hex | A5002F |