| Tail Number / N-Number | N221 |
| Manufacturer | CESSNA |
| Model | 560 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 560-0626 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PW535A |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 3,400 pounds-force (15.1 kN) |
| Total Thrust | 6,800 pounds-force (30.2 kN) |
| Type of Registrant | Corporation |
| Owner Name | AMBROSE CONSULTING CORP |
| Street | C/O AERO LAW GROUP 155 108TH AVE NE STE 310 |
| City | BELLEVUE |
| State | WA |
| Zip Code | 98004-5901 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-10-10 |
| Certificate Issue Date | 2018-01-25 |
| Last Action Date | 2020-11-10 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 50362267 |
| Mode S Code Hex | A1E4B7 |
Deregistered Aircraft 1 of 3. This aircraft was previously assigned the N-number N221.
| Tail Number / N-Number | N221 |
| Manufacturer | WACO |
| Model | UPF-7 |
| Year Built | 1939 |
| Manufacturer's Serial Number | 5304 |
| 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 | 165 miles per hour |
| Type of Registrant | Government |
| Owner Name | CIVIL AERONAUTICS ADMINISTRATION |
| Street | NONE |
| City | WASHINGTON |
| State | DC |
| Zip Code | 20001 |
| Region | Eastern |
| County | King County |
| Certificate Issue Date | 1942-09-04 |
| Last Status | Valid Registration |
| Cancellation Date | 1946-02-25 |
Deregistered Aircraft 2 of 3. This aircraft was previously assigned the N-number N221.
| Tail Number / N-Number | N221 |
| Manufacturer | CURTISS AIRCRAFT & MOTOR CORP |
| Model | SEAGULL |
| Year Built | 1922 |
| Manufacturer's Serial Number | 419-37 |
| Aircraft Type | Fixed wing single engine |
| Category | Sea |
| Builder Certification | Not 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 | Individual |
| Owner Name | YANCEY LEWIS A |
| Street | 10 W 72ND ST EXPLORERS CLUB |
| City | NEW YORK |
| State | NY |
| Zip Code | 10023 |
| Region | Eastern |
| County | King County |
| Certificate Issue Date | 1927-10-20 |
| Last Status | Valid Registration |
| Cancellation Date | 1929-01-08 |
Deregistered Aircraft 3 of 3. This aircraft was previously assigned the N-number N221.
| Tail Number / N-Number | N221 |
| Manufacturer | CAMAIR |
| Model | 480 |
| Year Built | 1946 |
| Manufacturer's Serial Number | 1-062 |
| Aircraft Type | Fixed wing multi 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 | O-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 230 hp (172 kW) |
| Total Horsepower | 460 hp (343 kW) |
| Average Cruising Speed | 135 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| City | XXX |
| State | OK |
| Zip Code | 73125 |
| County | King County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-01-09 |
| Last Action Date | 1991-10-10 |
| Last Status | Sale Reported – Pending Cancellation |
| Cancellation Date | 2011-07-15 |