Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6488C.
| Tail Number / N-Number | N6488C |
| Manufacturer | SIKORSKY |
| Model | S58E |
| Year Built | 1956 |
| Manufacturer's Serial Number | 58269 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 14 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | C9HE SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 1,525 hp (1,138 kW) |
| Average Cruising Speed | 81 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ST LOUIS HELICOPTER AIRWAYS INC |
| Street | 18004 EDISON AVENUE |
| City | CHESTERFIELD |
| State | MO |
| Zip Code | 63017 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1975-04-30 |
| Certificate Issue Date | 1974-04-11 |
| Last Action Date | 2008-02-19 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2008-04-11 |
| Mode S Code | 52103146 |
| Mode S Code Hex | A88666 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6488C.
| Tail Number / N-Number | N6488C |
| Manufacturer | BEECH |
| Model | A45 |
| Manufacturer's Serial Number | G-136 |
| 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 | UNITED STATES AIR FORCE |
| Street | GENERAL DELIVERY |
| City | KIRTLAND AIR FORCE |
| State | NM |
| Zip Code | 87008 |
| Region | Southwestern |
| Certificate Issue Date | 1958-04-25 |
| Last Status | Valid Registration |
| Cancellation Date | 1965-05-25 |
| Mode S Code | 52103146 |
| Mode S Code Hex | A88666 |