Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4133M.
| Tail Number / N-Number | N4133M |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2008 |
| Manufacturer's Serial Number | 12156 |
| Aircraft Type | Rotorcraft |
| 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 | IO-540-AE1A5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | Corporation |
| Owner Name | CENTRAL ILLINOIS AIR CORP |
| Street | 480 AIRPORT RD |
| City | MATTOON |
| State | IL |
| Zip Code | 61938-9228 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2008-02-12 |
| Certificate Issue Date | 2011-03-28 |
| Last Action Date | 2011-03-28 |
| Last Status | Valid Registration |
| Cancellation Date | 2011-04-11 |
| Exported To | CANADA |
| Mode S Code | 51161022 |
| Mode S Code Hex | A4E212 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4133M.
| Tail Number / N-Number | N4133M |
| Manufacturer | PIPER |
| Model | PA-12 |
| Manufacturer's Serial Number | 12-3030 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 82 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ALBERT E PRUESS |
| Street | 2519 NORTH ARTESIAN AVENUE |
| City | CHICAGO |
| State | IL |
| Zip Code | 60021 |
| Region | Great Lakes |
| Certificate Issue Date | 1952-07-18 |
| Last Status | Valid Registration |
| Cancellation Date | 1956-05-21 |
| Mode S Code | 51161022 |
| Mode S Code Hex | A4E212 |