| Tail Number / N-Number | N9621G |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-502B |
| Year Built | 2011 |
| Manufacturer's Serial Number | 502B-2742 |
| 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 CANADA |
| Engine Model | PT6A-34AG |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 750 hp (560 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 | 2011-03-03 |
| Certificate Issue Date | 2011-05-13 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 53263026 |
| Mode S Code Hex | AD6616 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N9621G.
| Tail Number / N-Number | N9621G |
| Manufacturer | AVIAT INC |
| Model | A-1 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 1182 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | JOHNSON RICK A |
| Street | 20101 KELLY HILL RD |
| City | QUINN |
| State | SD |
| Zip Code | 57775-6104 |
| County | Pennington County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1991-06-14 |
| Certificate Issue Date | 2003-07-31 |
| Last Action Date | 2009-07-21 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2010-12-03 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N9621G.
| Tail Number / N-Number | N9621G |
| Manufacturer | CESSNA |
| Model | A188B |
| Manufacturer's Serial Number | 18801565T |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 108 miles per hour |
| County | Pennington County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1988-02-16 |