| Tail Number / N-Number | N35121 |
| Manufacturer | CESSNA |
| Model | 172S |
| Manufacturer's Serial Number | 172S8844 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | SNOHOMISH FLYING SERVICE INC |
| Street | 9900 AIRPORT WAY |
| City | SNOHOMISH |
| State | WA |
| Zip Code | 98296-8273 |
| Region | Northwest Mountain |
| County | Snohomish County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2017-12-05 |
| Last Action Date | 2020-07-20 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 50765474 |
| Mode S Code Hex | A3EB3C |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N35121.
| Tail Number / N-Number | N35121 |
| Manufacturer | CESSNA |
| Model | 177B |
| Year Built | 1974 |
| Manufacturer's Serial Number | 17702220 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CENTRAL WISCONSIN AVIATION INC |
| Street | CENTRAL WISCONSIN AIRPORT |
| City | MOSINEE |
| State | WI |
| Zip Code | 54455 |
| Region | Great Lakes |
| County | Snohomish County |
| Certificate Issue Date | 1976-09-29 |
| Last Status | Valid Registration |
| Cancellation Date | 1981-05-05 |