| Tail Number / N-Number | N621ST |
| Type of Reservation | Fee paid, notice for expiration sent |
| Reserving Party Name | DONALD BARBOUR |
| Street | PO BOX 10 |
| City | LA VETA |
| State | CO |
| Zip Code | 81055-0010 |
| Date Reserved | 2022-02-04 |
| Expiration Date | 2022-12-04 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N621ST.
| Tail Number / N-Number | N621ST |
| Manufacturer | HAWKER SIDDELEY |
| Model | DH-125 |
| Year Built | 1964 |
| Manufacturer's Serial Number | 25014 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | BRIST SID |
| Engine Model | MARK 521 |
| Engine Type | Turbo-jet |
| Number of Engines | 2 engines |
| Horsepower per Engine | 312 hp (233 kW) |
| Total Horsepower | 624 hp (466 kW) |
| Average Cruising Speed | 320 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | OK AIRCRAFT PARTS INC |
| Street | 11125 GUIBAL AVE |
| City | GILROY |
| State | CA |
| Zip Code | 95020 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1965-01-20 |
| Certificate Issue Date | 1985-03-13 |
| Last Action Date | 1997-04-02 |
| Last Status | A second attempt has been made at mailing a Triennial Aircraft Registration form to the owner with no response |
| Cancellation Date | 2002-06-13 |