| Tail Number / N-Number | N20339 |
| Manufacturer | CESSNA |
| Model | 177B |
| Year Built | 1977 |
| Manufacturer's Serial Number | 17702659 |
| 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 | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GRANT DAVID M |
| Street | 1000 QUEEN ST |
| City | BELLINGHAM |
| State | WA |
| Zip Code | 98229-2149 |
| Region | Northwest Mountain |
| County | Whatcom County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-06-16 |
| Certificate Issue Date | 2009-12-02 |
| Last Action Date | 2021-08-21 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 50320013 |
| Mode S Code Hex | A1A00B |