| Tail Number / N-Number | N721US |
| Manufacturer | AEROSTAR INTERNATIONAL INC |
| Model | S-60A |
| Year Built | 1997 |
| Manufacturer's Serial Number | S60A-3233 |
| Aircraft Type | Balloon |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | MILLER HOWARD G JR |
| Street | 2640 COWPEN CREEK RD |
| City | ATMORE |
| State | AL |
| Zip Code | 36502-5878 |
| Region | Southern |
| County | Escambia County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1997-06-12 |
| Certificate Issue Date | 2023-01-06 |
| Last Action Date | 2023-01-06 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 52324426 |
| Mode S Code Hex | A9A916 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N721US.
| Tail Number / N-Number | N721US |
| Manufacturer | BOEING |
| Model | 727-214 |
| Manufacturer's Serial Number | 20165 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 134 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 3 engines |
| Average Cruising Speed | 435 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DALLAS AEROSPACE INC |
| Street | 1320 SPINKS DR |
| City | FLOWER MOUND |
| State | TX |
| Zip Code | 75028 |
| County | Escambia County |
| Country | US |
| Certificate Issue Date | 1991-07-26 |
| Last Action Date | 1994-08-25 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1994-08-25 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N721US.
| Tail Number / N-Number | N721US |
| Manufacturer | BOEING |
| Model | 720-051B |
| Manufacturer's Serial Number | 18351 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 143 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 466 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | NORTHWEST AIRLINES INC |
| Street | 1885 UNIVERSITY AVENUE |
| City | ST PAUL |
| State | MN |
| Zip Code | 56701 |
| Region | Great Lakes |
| County | Escambia County |
| Certificate Issue Date | 1961-06-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-11-23 |
| Exported To | UNITED KINGDOM |