| Tail Number / N-Number | N68ST |
| Manufacturer | LET |
| Model | L-13 BLANIK |
| Year Built | 1973 |
| Manufacturer's Serial Number | 25508 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Corporation |
| Owner Name | STEFENELLI AVIATION N-TR INC TRUSTEE |
| Street | SCHLOSSBERG 8 |
| City | ATTERSEE |
| Zip Code | A-4864 |
| Region | European |
| Country | AT |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2020-07-06 |
| Certificate Issue Date | 2016-11-03 |
| Last Action Date | 2022-06-19 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 52201200 |
| Mode S Code Hex | A90280 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N68ST.
| Tail Number / N-Number | N68ST |
| Manufacturer | PEGASUS AVIATION |
| Model | QUANTUM 15 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 7899 |
| Aircraft Type | Weight-shift-control |
| 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 | 912 |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 80 hp (60 kW) |
| Type of Registrant | Individual |
| Owner Name | BERDEAUX GARY C |
| Street | PO BOX 250 |
| City | PARK CITY |
| State | KY |
| Zip Code | 42160-0250 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-08-26 |
| Certificate Issue Date | 2010-04-08 |
| Last Action Date | 2010-04-08 |
| Last Status | Valid Registration |
| Cancellation Date | 2010-11-16 |
| Exported To | MEXICO |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N68ST.
| Tail Number / N-Number | N68ST |
| Manufacturer | PIPER |
| Model | PA-31 |
| Year Built | 1971 |
| Manufacturer's Serial Number | 31-729 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TI0-540 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 310 hp (231 kW) |
| Total Horsepower | 620 hp (463 kW) |
| Type of Registrant | Corporation |
| Owner Name | HEADWIND AVIATION LLC |
| Street | 1345 MARICOPA DR |
| City | OSHKOSH |
| State | WI |
| Zip Code | 54904-8150 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1971-05-17 |
| Certificate Issue Date | 2003-08-06 |
| Last Action Date | 2003-08-06 |
| Last Status | Valid Registration |
| Cancellation Date | 2005-01-07 |
| Exported To | CANADA |