| Tail Number / N-Number | N21531 |
| Manufacturer | PIPER |
| Model | PA-18-150 |
| Year Built | 1957 |
| Manufacturer's Serial Number | 18-5496 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | HANS NELSON & SONS NURSERY INC |
| Street | 31020 SE WAYBILL RD |
| City | BORING |
| State | OR |
| Zip Code | 97009-9427 |
| Region | Northwest Mountain |
| County | Clackamas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1994-08-17 |
| Certificate Issue Date | 1999-09-07 |
| Last Action Date | 2021-04-15 |
| Expiration Date | 2028-05-31 |
| Status | Valid Registration |
| Mode S Code | 50347360 |
| Mode S Code Hex | A1CEF0 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N21531.
| Tail Number / N-Number | N21531 |
| Manufacturer | CESSNA |
| Model | 182P |
| Manufacturer's Serial Number | 18261694 |
| 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 | 120 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | KENTUCKY FLYING SERVICE CORP |
| Street | BOWMAN FIELD |
| City | LOUISVILLE |
| State | KY |
| Zip Code | 40205 |
| County | Clackamas County |
| Country | US |
| Certificate Issue Date | 1987-04-28 |
| Last Action Date | 1991-01-31 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1991-03-11 |