| Tail Number / N-Number | N21LF |
| Manufacturer | CESSNA |
| Model | 172S |
| Year Built | 2001 |
| Manufacturer's Serial Number | 172S8936 |
| 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 | LYCOMING |
| Engine Model | I0360 SER A&C |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Type of Registrant | LLC |
| Owner Name | LUNKEN FLIGHT TRAINING CENTER LLC |
| Street | 4500 AIRPORT RD |
| City | CINCINNATI |
| State | OH |
| Zip Code | 45226-1601 |
| Region | Great Lakes |
| County | Hamilton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2001-09-11 |
| Certificate Issue Date | 2008-07-24 |
| Last Action Date | 2022-05-18 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50334051 |
| Mode S Code Hex | A1B829 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N21LF.
| Tail Number / N-Number | N21LF |
| Manufacturer | LEAR FAN LIMITED |
| Model | LF 2100 |
| Manufacturer's Serial Number | E010 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| County | Hamilton County |
| Last Status | Administratively canceled |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N21LF.
| Tail Number / N-Number | N21LF |
| Manufacturer | LEAR FAN LIMITED |
| Model | LF 2100 |
| Year Built | 1982 |
| Manufacturer's Serial Number | E003 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PT6A-60A |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,050 hp (783 kW) |
| Total Horsepower | 2,100 hp (1,567 kW) |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 6911 LEMMON AVE |
| City | DALLAS |
| State | TX |
| Zip Code | 75209-3603 |
| County | Hamilton County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1984-07-18 |
| Last Action Date | 2008-10-14 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2013-08-23 |