Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N51427.
| Tail Number / N-Number | N51427 |
| Manufacturer | MAULE |
| Model | M-4-210C |
| Manufacturer's Serial Number | 1096C |
| 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 | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BUTTERFIELD AIDAN P |
| Street | 311 WOODY PO BOX 8032 |
| City | MISSOULA |
| State | MT |
| Zip Code | 59807 |
| Region | Northwest Mountain |
| Certificate Issue Date | 1978-10-18 |
| Last Status | Valid Registration |
| Cancellation Date | 1978-12-19 |
| Exported To | CANADA |
| Mode S Code | 51471411 |
| Mode S Code Hex | A67309 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N51427.
| Tail Number / N-Number | N51427 |
| Manufacturer | SCHULTZ MICHAEL |
| Model | CHALLENGER 1 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 0202-CW-0774 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 503 DCDI |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 52 hp (39 kW) |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 116 STATE ROAD 35 |
| City | OSCEOLA |
| State | WI |
| Zip Code | 54020-4107 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-07-17 |
| Last Action Date | 2010-07-08 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2013-08-28 |
| Mode S Code | 51471411 |
| Mode S Code Hex | A67309 |