| Tail Number / N-Number | N171K |
| Manufacturer | AEROPRO CZ S R O |
| Model | A240 |
| Year Built | 2020 |
| Manufacturer's Serial Number | 58620 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | LLC |
| Owner Name | WENGAIR LLC |
| Street | 1092 ROAD 10 |
| City | POWELL |
| State | WY |
| Zip Code | 82435-9219 |
| Region | Northwest Mountain |
| County | Park County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Light Sport |
| Airworthiness Date | 2020-05-06 |
| Certificate Issue Date | 2020-07-30 |
| Last Action Date | 2020-07-30 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 50216705 |
| Mode S Code Hex | A11DC5 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N171K.
| Tail Number / N-Number | N171K |
| Manufacturer | MONOCOUPE |
| Model | 90 |
| Year Built | 1930 |
| Manufacturer's Serial Number | 505 |
| 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 | 72 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALKIND DAVID H |
| Street | NONE |
| City | MORRISTOWN |
| State | NJ |
| Zip Code | 07960 |
| Region | Eastern |
| County | Park County |
| Certificate Issue Date | 1933-10-17 |
| Last Status | Valid Registration |
| Cancellation Date | 1934-05-21 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N171K.
| Tail Number / N-Number | N171K |
| Manufacturer | SMITH MINIPLANE |
| Model | DSA-1 |
| Year Built | 1965 |
| Manufacturer's Serial Number | L-626 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | C85 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 85 hp (63 kW) |
| Average Cruising Speed | 86 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 3804 SAINT LUCIE BLVD |
| City | FORT PIERCE |
| State | FL |
| Zip Code | 34946-9022 |
| County | Park County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-09-03 |
| Last Action Date | 2002-04-29 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2012-07-24 |