| Tail Number / N-Number | N621B |
| Manufacturer | BEECH |
| Model | J35 |
| Year Built | 1957 |
| Manufacturer's Serial Number | D-5416 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ALVAREZ JOHNNY D |
| Street | 23524 MAJESTIC VW |
| City | SAN ANTONIO |
| State | TX |
| Zip Code | 78258-7723 |
| Region | Southwestern |
| County | Bexar County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1957-12-30 |
| Certificate Issue Date | 2017-05-09 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 52015015 |
| Mode S Code Hex | A81A0D |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N621B.
| Tail Number / N-Number | N621B |
| Manufacturer | BEECH |
| Model | A35 |
| Manufacturer's Serial Number | D-1644 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 120 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | HUNTER FLYING SERVICE INC |
| Street | PO BOX 1510 |
| City | CEDAR RAPIDS |
| State | IA |
| Zip Code | 52401 |
| Region | Central |
| County | Bexar County |
| Certificate Issue Date | 1950-07-25 |
| Last Status | Valid Registration |
| Cancellation Date | 1951-10-04 |