| Tail Number / N-Number | N4721M |
| Manufacturer | BEECH |
| Model | F33A |
| Year Built | 1978 |
| Manufacturer's Serial Number | CE-777 |
| 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 | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 138 miles per hour |
| Type of Registrant | Individual |
| Owner Name | NEITHINGER DONALD LEE |
| Street | 2741 VIA FIORI |
| City | EL DORADO HILLS |
| State | CA |
| Zip Code | 95762-7009 |
| Region | Western-Pacific |
| County | El Dorado County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-03-30 |
| Certificate Issue Date | 2012-10-26 |
| Last Action Date | 2021-05-15 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 51345417 |
| Mode S Code Hex | A5CB0F |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4721M.
| Tail Number / N-Number | N4721M |
| Manufacturer | PIPER |
| Model | PA-11 |
| Manufacturer's Serial Number | 11-230 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SMITH GEORGE C |
| Street | CUMBERLAND AIRPORT |
| City | CUMBERLAND |
| State | KY |
| Zip Code | 40150 |
| Region | Central |
| County | El Dorado County |
| Certificate Issue Date | 1947-11-07 |
| Last Status | Valid Registration |
| Cancellation Date | 1951-07-27 |