Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N75215.
| Tail Number / N-Number | N75215 |
| Manufacturer | SIKORSKY |
| Model | S55B |
| Year Built | 1954 |
| Manufacturer's Serial Number | 55-648 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AIRESEARCH |
| Engine Model | TSE331 SERIES |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 800 hp (597 kW) |
| Average Cruising Speed | 78 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | WESTEC AIR INC |
| Street | 4949 E FALCON DRIVE |
| City | MESA |
| State | AZ |
| Zip Code | 85205 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1980-02-29 |
| Certificate Issue Date | 1988-07-27 |
| Last Action Date | 1991-09-21 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-10-24 |
| Mode S Code | 52422020 |
| Mode S Code Hex | AA2410 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N75215.
| Tail Number / N-Number | N75215 |
| Manufacturer | NORTH AMERICAN |
| Model | AT-6B |
| Manufacturer's Serial Number | 84-7579 |
| 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 | 141 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | NORTH AMERICAN AVIATION INC |
| Street | LOS ANGELES ARPT |
| City | LOS ANGELES |
| State | CA |
| Zip Code | 90001 |
| Region | Western-Pacific |
| Certificate Issue Date | 1949-05-05 |
| Last Status | Valid Registration |
| Cancellation Date | 1950-07-28 |
| Mode S Code | 52422020 |
| Mode S Code Hex | AA2410 |