| Tail Number / N-Number | N21988 |
| Manufacturer | BUCK ROBIN F |
| Model | BUCKSTON B2+2 |
| Year Built | 2001 |
| Manufacturer's Serial Number | 1 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | FRANKLIN |
| Engine Model | 6A4165 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 165 hp (123 kW) |
| Type of Registrant | Individual |
| Owner Name | BUCK ROBIN F |
| Street | 29248 170TH AVE SE |
| City | KENT |
| State | WA |
| Zip Code | 98042-9438 |
| Region | Northwest Mountain |
| County | Snohomish County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2001-09-19 |
| Certificate Issue Date | 2000-05-08 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-04-30 |
| Status | Valid Registration |
| Mode S Code | 50357202 |
| Mode S Code Hex | A1DE82 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N21988.
| Tail Number / N-Number | N21988 |
| Manufacturer | CESSNA |
| Model | 150L |
| Manufacturer's Serial Number | 15074592 |
| 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 | Individual |
| Owner Name | EPP DAVID R |
| Street | 6410 GARLAND CT |
| City | NEW PORT RICHEY |
| State | FL |
| Zip Code | 34652 |
| County | Snohomish County |
| Country | US |
| Certificate Issue Date | 1993-08-04 |
| Last Action Date | 1996-08-21 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1996-09-03 |
| Exported To | SWITZERLAND |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N21988.
| Tail Number / N-Number | N21988 |
| Manufacturer | PORTERFIELD |
| Model | CP-50 |
| Manufacturer's Serial Number | 571 |
| 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 | NAYLOR ROBERT M |
| Street | 21914 BEECH STREET |
| City | DEARBORN |
| State | MI |
| Zip Code | 48033 |
| Region | Great Lakes |
| County | Snohomish County |
| Certificate Issue Date | 1944-01-19 |
| Last Status | Valid Registration |
| Cancellation Date | 1951-06-15 |