| Tail Number / N-Number | N3904Y |
| Manufacturer | CESSNA |
| Model | 210D |
| Year Built | 1964 |
| Manufacturer's Serial Number | 21058404 |
| 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) |
| 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 | 141 miles per hour |
| Type of Registrant | Individual |
| Owner Name | OTTO WILLIAM R |
| Street | 1441 VALENCIA PL |
| City | ONTARIO |
| State | CA |
| Zip Code | 91761-7645 |
| Region | Western-Pacific |
| County | San Bernardino County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1964-05-16 |
| Certificate Issue Date | 1982-04-20 |
| Last Action Date | 2022-08-16 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51102704 |
| Mode S Code Hex | A485C4 |