Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N421BX.
| Tail Number / N-Number | N421BX |
| Manufacturer | CESSNA |
| Model | 421B |
| Year Built | 1973 |
| Manufacturer's Serial Number | 421B0391 |
| 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-H |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 375 hp (280 kW) |
| Total Horsepower | 750 hp (560 kW) |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CRYSTAL AIR LLC |
| Street | PO BOX 35981 |
| City | BRIGHTON |
| State | MA |
| Zip Code | 02135 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2006-08-07 |
| Certificate Issue Date | 2006-07-20 |
| Last Action Date | 2012-03-12 |
| Last Status | Registration Expired - Pending Cancellation |
| Cancellation Date | 2018-01-04 |
| Mode S Code | 51177605 |
| Mode S Code Hex | A4FF85 |