| Tail Number / N-Number | N6840A |
| Manufacturer | CESSNA |
| Model | 172 |
| Year Built | 1956 |
| Manufacturer's Serial Number | 28940 |
| 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 | 0-300 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 145 hp (108 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MCNAUGHT SCOTT S |
| Street | 290 SARGENT RD |
| City | WINLOCK |
| State | WA |
| Zip Code | 98596-9612 |
| Region | Northwest Mountain |
| County | Lewis County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-07-13 |
| Certificate Issue Date | 2014-03-07 |
| Last Action Date | 2022-10-14 |
| Expiration Date | 2030-03-31 |
| Status | Valid Registration |
| Mode S Code | 52212154 |
| Mode S Code Hex | A9146C |