| Tail Number / N-Number | N20LL |
| Manufacturer | PIPER |
| Model | PA-28-181 |
| Year Built | 1978 |
| Manufacturer's Serial Number | 28-7990119 |
| 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 | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | FLYING 20 CLUB INC |
| Street | PO BOX 1971 |
| City | SPRINGFIELD |
| State | IL |
| Zip Code | 62705-1971 |
| Region | Great Lakes |
| County | Sangamon County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-10-06 |
| Certificate Issue Date | 1993-06-15 |
| Last Action Date | 2020-03-31 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 50310257 |
| Mode S Code Hex | A190AF |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N20LL.
| Tail Number / N-Number | N20LL |
| Manufacturer | DANIEL LA LEE |
| Model | MIDGET MUSTANG M1 |
| Manufacturer's Serial Number | 534 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GOTTENBERG WILLIAM L |
| Street | 8206 S 87TH 12 |
| City | LAVISTA |
| State | NE |
| Zip Code | 68128 |
| County | Sangamon County |
| Country | US |
| Certificate Issue Date | 1984-04-05 |
| Last Action Date | 1990-04-10 |
| Last Status | Valid Registration |
| Cancellation Date | 1991-12-11 |