Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6639Z.
| Tail Number / N-Number | N6639Z |
| Manufacturer | PIPER |
| Model | PA-25-235 |
| Year Built | 1963 |
| Manufacturer's Serial Number | 25-2234 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-540 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 250 hp (187 kW) |
| Average Cruising Speed | 93 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KUEHN JON E |
| Street | 105 18TH AVE SE |
| City | MINOT |
| State | ND |
| Zip Code | 58701 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1963-01-07 |
| Certificate Issue Date | 1985-08-12 |
| Last Action Date | 1991-09-21 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-04-30 |
| Mode S Code | 52141411 |
| Mode S Code Hex | A8C309 |