Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N31511.
| Tail Number / N-Number | N31511 |
| Manufacturer | AEROTEK |
| Model | PITTS S-2A |
| Manufacturer's Serial Number | 2142 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 115 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BLUE SKY INC |
| Street | C/O C W HARRIS PO BOX 470350 |
| City | TULSA |
| State | OK |
| Zip Code | 74147 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-04-29 |
| Certificate Issue Date | 1983-06-07 |
| Last Action Date | 2009-02-17 |
| Last Status | First Notice for Re-Registration/Renewal |
| Cancellation Date | 2011-08-03 |
| Exported To | AUSTRALIA |
| Mode S Code | 50655771 |
| Mode S Code Hex | A35BF9 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N31511.
| Tail Number / N-Number | N31511 |
| Manufacturer | STINSON |
| Model | 10 |
| Manufacturer's Serial Number | 7724 |
| 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 | 90 miles per hour |
| Type of Registrant | Individual |
| Owner Name | CRALL D H |
| Street | PO BOX 870 |
| City | WEWOKA |
| State | OK |
| Zip Code | 74884 |
| Region | Southwestern |
| Certificate Issue Date | 1944-10-07 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-04-17 |
| Mode S Code | 50655771 |
| Mode S Code Hex | A35BF9 |