| Tail Number / N-Number | N3491C |
| Manufacturer | CESSNA |
| Model | 170B |
| Year Built | 1954 |
| Manufacturer's Serial Number | 26534 |
| 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 | Corporation |
| Owner Name | NORTH SOUND AVIATION INC |
| Street | 30578 WALBERG RD |
| City | SEDRO WOOLLEY |
| State | WA |
| Zip Code | 98284-8659 |
| Region | Northwest Mountain |
| County | Skagit County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-01-30 |
| Certificate Issue Date | 1998-06-01 |
| Last Action Date | 2020-08-15 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 50760473 |
| Mode S Code Hex | A3E13B |