| Tail Number / N-Number | N5581B |
| Manufacturer | MATTHEW PUTZ |
| Model | SONEX |
| Manufacturer's Serial Number | 1585 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not 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 |
| Kit Manufacturer | SONEX AIRCRAFT LLC |
| Kit Model | SONEX |
| Type of Registrant | Individual |
| Owner Name | PUTZ MATTHEW P |
| Street | 2912 89TH CT NE |
| City | BLAINE |
| State | MN |
| Zip Code | 55449-5028 |
| Region | Great Lakes |
| County | Hennepin County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2022-01-08 |
| Last Action Date | 2022-01-08 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 51617640 |
| Mode S Code Hex | A71FA0 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N5581B.
| Tail Number / N-Number | N5581B |
| Manufacturer | CESSNA |
| Model | 182 |
| Year Built | 1956 |
| Manufacturer's Serial Number | 33581 |
| 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 | CONT MOTOR |
| Engine Model | O-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 230 hp (172 kW) |
| Average Cruising Speed | 119 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 215 MARKET STREET |
| City | SAN FRANCISCO |
| State | CA |
| Zip Code | 94105 |
| County | Hennepin County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-08-09 |
| Last Action Date | 1978-03-25 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2013-01-31 |