| Tail Number / N-Number | N511AC |
| Manufacturer | AIRBUS HELICOPTERS |
| Model | EC225 LP |
| Manufacturer's Serial Number | 2681 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 26 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | AIR CENTER HELICOPTERS INC |
| Street | 308 E RENFRO ST STE 104 |
| City | BURLESON |
| State | TX |
| Zip Code | 76028-3943 |
| Region | Southwestern |
| County | Johnson County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2022-12-08 |
| Last Action Date | 2023-01-26 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 51462451 |
| Mode S Code Hex | A66529 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N511AC.
| Tail Number / N-Number | N511AC |
| Manufacturer | DOUGLAS |
| Model | DC-6B |
| Manufacturer's Serial Number | 45515 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 96 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 216 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ATKINS AVIATION INC |
| Street | 1601 WICHITA |
| City | MCALLEN |
| State | TX |
| Zip Code | 78503 |
| County | Johnson County |
| Country | US |
| Certificate Issue Date | 1984-04-30 |
| Last Action Date | 1991-01-31 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1991-03-25 |