| Tail Number / N-Number | N421RM |
| Manufacturer | CESSNA |
| Model | 421A |
| Year Built | 1969 |
| Manufacturer's Serial Number | 421A0069 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 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 | 172 miles per hour |
| Type of Registrant | LLC |
| Owner Name | EAGLE AIR LLC |
| Street | 401 SEA MOUNTAIN HWY |
| City | NORTH MYRTLE BEACH |
| State | SC |
| Zip Code | 29582-2340 |
| Region | Southern |
| County | Horry County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1969-04-15 |
| Certificate Issue Date | 2015-06-12 |
| Last Action Date | 2021-01-20 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 51200331 |
| Mode S Code Hex | A500D9 |