| Tail Number / N-Number | N4090S |
| Manufacturer | BEECH |
| Model | A36 |
| Year Built | 1975 |
| Manufacturer's Serial Number | E-645 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 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 | Co-Ownership |
| Owner Name | SHAFFER STEPHEN N |
| Other Names |
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| Street | PO BOX 1175 |
| City | GLEN ELLEN |
| State | CA |
| Zip Code | 95442-1175 |
| Region | Western-Pacific |
| County | Sonoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1975-01-30 |
| Certificate Issue Date | 2005-09-23 |
| Last Action Date | 2020-11-17 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 51150171 |
| Mode S Code Hex | A4D079 |