| Tail Number / N-Number | N747A |
| Manufacturer | BOEING |
| Model | 747SP-27 |
| Manufacturer's Serial Number | 21992 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 192 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Type of Registrant | Government |
| Owner Name | NASA-ARMSTRONG FLIGHT RESEARCH CENTER |
| Street | ATTN: JAMES E COLEMAN III PO BOX 1732 M/S 1732 |
| City | EDWARDS |
| State | CA |
| Zip Code | 93523-0273 |
| Region | Western-Pacific |
| County | Kern County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2017-01-10 |
| Last Action Date | 2022-10-05 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 52406213 |
| Mode S Code Hex | AA0C8B |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N747A.
| Tail Number / N-Number | N747A |
| Manufacturer | SIKORSKY |
| Model | S-55 |
| Year Built | 1956 |
| Manufacturer's Serial Number | 55910 |
| 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 | TPE331 SERIES |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 85 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CENTRAL SIERRA HELICOPTERS INC |
| Street | PO BOX 2288 |
| City | MARIPOSA |
| State | CA |
| Zip Code | 95338-2288 |
| County | Kern County |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1989-04-03 |
| Certificate Issue Date | 2003-06-23 |
| Last Action Date | 2003-06-23 |
| Last Status | Valid Registration |
| Cancellation Date | 2004-01-16 |