| Tail Number / N-Number | N51AC |
| Manufacturer | TEXTRON AVIATION INC |
| Model | 525C |
| Year Built | 2018 |
| Manufacturer's Serial Number | 525C0276 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | WILLIAMS |
| Engine Model | FJ44-4A |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 3,443 pounds-force (15.3 kN) |
| Total Thrust | 6,886 pounds-force (30.6 kN) |
| Type of Registrant | Corporation |
| Owner Name | AVIS INDUSTRIAL CORP |
| Street | PO BOX 548 |
| City | UPLAND |
| State | IN |
| Zip Code | 46989-0548 |
| Region | Great Lakes |
| County | Grant County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2018-08-29 |
| Certificate Issue Date | 2018-10-23 |
| Last Action Date | 2021-05-20 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 51457431 |
| Mode S Code Hex | A65F19 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N51AC.
| Tail Number / N-Number | N51AC |
| Manufacturer | PITTS |
| Model | S-1C |
| Year Built | 1972 |
| Manufacturer's Serial Number | 137-H |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WOLTERMANN CATHLEEN A |
| Street | 1516 JANIE ST |
| City | BILLINGS |
| State | MT |
| Zip Code | 59105-4248 |
| County | Grant County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1976-06-08 |
| Certificate Issue Date | 2009-09-25 |
| Last Action Date | 2009-09-25 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-03-25 |