| Tail Number / N-Number | N421NG |
| Manufacturer | CESSNA |
| Model | 421C |
| Manufacturer's Serial Number | 421C0129 |
| 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 |
| Type of Registrant | LLC |
| Owner Name | ULTIMATE AIRPARTS LLC |
| Street | 772 OLD GRADE RD |
| City | STRASBURG |
| State | VA |
| Zip Code | 22657-4415 |
| Region | Eastern |
| County | Shenandoah County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2020-04-20 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-04-30 |
| Status | Valid Registration |
| Mode S Code | 51200211 |
| Mode S Code Hex | A50089 |