| Tail Number / N-Number | N18521 |
| Manufacturer | CESSNA |
| Model | A185F |
| Year Built | 1979 |
| Manufacturer's Serial Number | 185-03812 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 127 miles per hour |
| Type of Registrant | LLC |
| Owner Name | ISLAND AIR LLC |
| Street | 837 APOLLO RD STE B |
| City | EAGAN |
| State | MN |
| Zip Code | 55121-2386 |
| Region | Great Lakes |
| County | Dakota County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2001-03-09 |
| Certificate Issue Date | 2002-06-20 |
| Last Action Date | 2020-04-27 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 50252767 |
| Mode S Code Hex | A155F7 |
Deregistered Aircraft 1 of 3. This aircraft was previously assigned the N-number N18521.
| Tail Number / N-Number | N18521 |
| Manufacturer | PORTERFIELD |
| Model | CP-40 |
| Year Built | 1937 |
| Manufacturer's Serial Number | 501 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 76 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MITCHELL JOHN S |
| Street | UNKNOW |
| City | PESOTUM |
| State | IL |
| Zip Code | 61863 |
| Region | Great Lakes |
| County | Dakota County |
| Certificate Issue Date | 1937-05-05 |
| Last Status | Valid Registration |
| Cancellation Date | 1948-05-11 |
Deregistered Aircraft 2 of 3. This aircraft was previously assigned the N-number N18521.
| Tail Number / N-Number | N18521 |
| Manufacturer | CESSNA |
| Model | 150L |
| Manufacturer's Serial Number | 15073910 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | THREE STAR AVIATION INC |
| Street | BICKFORD FIELD EAST MAIN ROAD |
| City | LEROY |
| State | NY |
| Zip Code | 14482 |
| Region | Eastern |
| County | Dakota County |
| Last Status | Valid Registration |
| Cancellation Date | 1973-06-26 |
Deregistered Aircraft 3 of 3. This aircraft was previously assigned the N-number N18521.
| Tail Number / N-Number | N18521 |
| Manufacturer | BEECH |
| Model | 58 |
| Manufacturer's Serial Number | TH1297 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 165 miles per hour |
| County | Dakota County |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1990-03-14 |