Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N3274P.
| Tail Number / N-Number | N3274P |
| Manufacturer | COX JAMES E |
| Model | 400 |
| Year Built | 1982 |
| Manufacturer's Serial Number | 001 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-720 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 400 hp (298 kW) |
| Type of Registrant | Corporation |
| Owner Name | HELIO AIRCRAFT LTD |
| Street | PO BOX 604 |
| City | PITTSBURG |
| State | KS |
| Zip Code | 66762 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1982-09-17 |
| Certificate Issue Date | 1983-04-08 |
| Last Action Date | 1991-03-23 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-06 |
| Mode S Code | 50705503 |
| Mode S Code Hex | A38B43 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N3274P.
| Tail Number / N-Number | N3274P |
| Manufacturer | PIPER |
| Model | PA-23-160 |
| Year Built | 1957 |
| Manufacturer's Serial Number | 23-1219 |
| 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 | 150 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | COMBS AIRCRAFT CO |
| Street | GENERAL DELIVERY STAPLETON AIRFIELD |
| City | DENVER |
| State | CO |
| Zip Code | 80012 |
| Region | Northwest Mountain |
| Certificate Issue Date | 1957-11-12 |
| Last Status | Valid Registration |
| Cancellation Date | 1960-01-13 |
| Exported To | CANADA |
| Mode S Code | 50705503 |
| Mode S Code Hex | A38B43 |