| Tail Number / N-Number | N21809 |
| Manufacturer | CESSNA |
| Model | 172M |
| Year Built | 1974 |
| Manufacturer's Serial Number | 17264028 |
| 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 | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | ECKERSON DEAN H |
| Other Names |
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| Street | 164 VALLEY OAK LN |
| City | VALLEJO |
| State | CA |
| Zip Code | 94591-8038 |
| Region | Western-Pacific |
| County | Solano County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-09-26 |
| Certificate Issue Date | 2005-07-12 |
| Last Action Date | 2020-10-14 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50354664 |
| Mode S Code Hex | A1D9B4 |