| Tail Number / N-Number | N3756X |
| Manufacturer | CESSNA |
| Model | 210J |
| Year Built | 1968 |
| Manufacturer's Serial Number | 21059075 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | LLC |
| Owner Name | CHEYENNE 56X AVIATION LLC |
| Street | 9633 LOS COCHES RD |
| City | LAKESIDE |
| State | CA |
| Zip Code | 92040-4239 |
| Region | Western-Pacific |
| County | San Diego County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1980-07-07 |
| Certificate Issue Date | 2020-12-03 |
| Last Action Date | 2020-12-03 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 51044636 |
| Mode S Code Hex | A4499E |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N3756X.
| Tail Number / N-Number | N3756X |
| Manufacturer | AERO COMMANDER |
| Model | 100-180 |
| Manufacturer's Serial Number | 5070 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | COURTESY AIRCRAFT LTD |
| Street | 5400 NORTH SECOND STREET |
| City | ROCKFORD |
| State | IL |
| Zip Code | 61111 |
| Region | Great Lakes |
| County | San Diego County |
| Last Status | Valid Registration |
| Cancellation Date | 1971-06-09 |
| Exported To | CANADA |