| Tail Number / N-Number | N4021L |
| Manufacturer | ADAMS BALLOON |
| Model | A55 |
| Year Built | 1983 |
| Manufacturer's Serial Number | 134 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 0 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 | GUNTER RYAN S |
| Street | 1510 LA CABRA DR SE |
| City | ALBUQUERQUE |
| State | NM |
| Zip Code | 87123-4404 |
| Region | Southwestern |
| County | Bernalillo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1983-10-28 |
| Certificate Issue Date | 2015-06-02 |
| Last Action Date | 2022-05-04 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 51133225 |
| Mode S Code Hex | A4B695 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4021L.
| Tail Number / N-Number | N4021L |
| Manufacturer | AYRES CORP |
| Model | S-2R |
| Manufacturer's Serial Number | R1820-024DC |
| 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 |
| Type of Registrant | Corporation |
| Owner Name | AYRES CORP |
| Street | PO BOX 3090 |
| City | ALBANY |
| State | GA |
| Zip Code | 31706 |
| Region | Southern |
| County | Bernalillo County |
| Last Status | Valid Registration |
| Cancellation Date | 1981-12-04 |
| Exported To | AUSTRALIA |