| Tail Number / N-Number | N621US |
| Manufacturer | AEROSTAR INTERNATIONAL INC |
| Model | S57H |
| Year Built | 2003 |
| Manufacturer's Serial Number | S57H-3003 |
| Aircraft Type | Balloon |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | GREEN JOHN J |
| Street | 9401 LAYTON AVE NE |
| City | ALBUQUERQUE |
| State | NM |
| Zip Code | 87111-1331 |
| Region | Southwestern |
| County | Bernalillo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2003-08-14 |
| Certificate Issue Date | 2017-08-02 |
| Last Action Date | 2020-03-10 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 52015707 |
| Mode S Code Hex | A81BC7 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N621US.
| Tail Number / N-Number | N621US |
| Manufacturer | BOEING |
| Model | 747-268F |
| Manufacturer's Serial Number | 19919 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 490 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Type of Registrant | Corporation |
| Owner Name | NORTHWEST AIRLINES INC |
| Street | 5101 NORTHWEST DRIVE C7-8960 |
| City | ST PAUL |
| State | MN |
| Zip Code | 55111 |
| County | Bernalillo County |
| Country | US |
| Certificate Issue Date | 1976-05-10 |
| Last Action Date | 1995-01-19 |
| Last Status | Valid Registration |
| Cancellation Date | 1995-05-12 |