Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N3521S.
| Tail Number / N-Number | N3521S |
| Manufacturer | PIPER |
| Model | PA-31-350 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 31-7952107 |
| 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) |
| Average Cruising Speed | 162 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AERO INDUSTRIES INCORPORATED |
| Street | 5745 HUNTSMAN RD |
| City | RICHMOND |
| State | VA |
| Zip Code | 23250-2416 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-04-22 |
| Certificate Issue Date | 1983-03-09 |
| Last Action Date | 2016-09-13 |
| Last Status | Valid Registration |
| Cancellation Date | 2017-06-20 |
| Exported To | CANADA |
| Mode S Code | 50767307 |
| Mode S Code Hex | A3EEC7 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N3521S.
| Tail Number / N-Number | N3521S |
| Manufacturer | CESSNA |
| Model | 172E |
| Manufacturer's Serial Number | 17250721 |
| 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 | 105 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | DONALD L BRUNS |
| Street | 1415 SQUIRE LANE |
| City | ABERDEEN |
| State | SD |
| Zip Code | 57401 |
| Region | Great Lakes |
| Certificate Issue Date | 1971-07-17 |
| Last Status | Valid Registration |
| Cancellation Date | 1973-05-08 |
| Exported To | CANADA |
| Mode S Code | 50767307 |
| Mode S Code Hex | A3EEC7 |