| Tail Number / N-Number | N421JM |
| Manufacturer | CESSNA |
| Model | 421B |
| Year Built | 1975 |
| Manufacturer's Serial Number | 421B0956 |
| 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 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SCHUCK JAMES M |
| Street | 7802 DANVERS ST |
| City | DOWNEY |
| State | CA |
| Zip Code | 90240-2666 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-06-19 |
| Certificate Issue Date | 2014-08-18 |
| Last Action Date | 2020-04-25 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51200052 |
| Mode S Code Hex | A5002A |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N421JM.
| Tail Number / N-Number | N421JM |
| Manufacturer | CESSNA |
| Model | 421C |
| Manufacturer's Serial Number | 421C0239 |
| 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) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 90 miles per hour |
| County | Los Angeles County |
| Last Status | N-Number Assigned – but has not yet been registered |