| Tail Number / N-Number | N4181B |
| Manufacturer | BELLANCA |
| Model | 17-30A |
| Manufacturer's Serial Number | 75-30770 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 142 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | OSTERBERG DOUGLAS L |
| Other Names |
|
| Street | 1765 COTTAGEWOOD DR |
| City | NEENAH |
| State | WI |
| Zip Code | 54956-8962 |
| Region | Great Lakes |
| County | Winnebago County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2008-07-31 |
| Last Action Date | 2023-02-11 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 51172125 |
| Mode S Code Hex | A4F455 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4181B.
| Tail Number / N-Number | N4181B |
| Manufacturer | AERO COMMANDER |
| Model | 520 |
| Manufacturer's Serial Number | 84 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 147 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MARK AERO SUPPLY INC |
| Street | 2607 CONNECTICUT AVE NW |
| City | WASHINGTON |
| State | DC |
| Zip Code | 20599 |
| Region | Eastern |
| County | Winnebago County |
| Certificate Issue Date | 1953-07-09 |
| Last Status | Valid Registration |
| Cancellation Date | 1954-03-02 |
| Exported To | BRAZIL |