| Tail Number / N-Number | N45421 |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-401 |
| Manufacturer's Serial Number | 401-0786 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R1340 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Type of Registrant | Corporation |
| Owner Name | ASCEND AG INC |
| Street | PO BOX 413 |
| City | WALL |
| State | SD |
| Zip Code | 57790-0413 |
| Region | Great Lakes |
| County | Pennington County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1990-11-14 |
| Certificate Issue Date | 2016-09-22 |
| Last Action Date | 2022-05-11 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 51301660 |
| Mode S Code Hex | A583B0 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N45421.
| Tail Number / N-Number | N45421 |
| Manufacturer | MOHRENWEISER RICHARD H |
| Model | TIERRA |
| Manufacturer's Serial Number | 32239 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| County | Pennington County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |