| Tail Number / N-Number | N6623 |
| Manufacturer | BEECH |
| Model | D18S |
| Year Built | 1946 |
| Manufacturer's Serial Number | A-295 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 450 hp (336 kW) |
| Total Horsepower | 900 hp (671 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SZOSTAK EDWARD M |
| Street | 3428 VALEMONT ST |
| City | SAN DIEGO |
| State | CA |
| Zip Code | 92106-2433 |
| Region | Western-Pacific |
| County | San Diego County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-11-15 |
| Certificate Issue Date | 2015-08-11 |
| Last Action Date | 2021-04-06 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 52137150 |
| Mode S Code Hex | A8BE68 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6623.
| Tail Number / N-Number | N6623 |
| Manufacturer | BEECH |
| Model | 3T |
| Manufacturer's Serial Number | 43-35693 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 153 miles per hour |
| Type of Registrant | Corporation |
| County | San Diego County |
| Certificate Issue Date | 1971-02-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1972-11-15 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6623.
| Tail Number / N-Number | N6623 |
| Manufacturer | CESSNA |
| Model | AW |
| Manufacturer's Serial Number | 135 |
| 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 | 86 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WELLS ROBERT O |
| County | San Diego County |
| Last Status | Valid Registration |
| Cancellation Date | 1936-09-27 |