Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N543B.
| Tail Number / N-Number | N543B |
| Manufacturer | BEECH |
| Model | D18S |
| Year Built | 1947 |
| Manufacturer's Serial Number | A-408 |
| 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 | SOUTH MARC A |
| Street | 107 W FIRST STREET |
| City | ELOY |
| State | AZ |
| Zip Code | 85231 |
| Country | US |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 1975-04-16 |
| Last Action Date | 1977-01-14 |
| Last Status | Revoked – Canceled |
| Cancellation Date | 2012-08-21 |
| Mode S Code | 51561452 |
| Mode S Code Hex | A6E32A |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N543B.
| Tail Number / N-Number | N543B |
| Manufacturer | BEECH |
| Model | A35 |
| Manufacturer's Serial Number | D-1561 |
| 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 | GOPHER AVIATION INC |
| Street | LOBB FIELD |
| City | ROCHESTER |
| State | MN |
| Zip Code | 55901 |
| Region | Great Lakes |
| Certificate Issue Date | 1959-08-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1963-02-11 |
| Mode S Code | 51561452 |
| Mode S Code Hex | A6E32A |