| Tail Number / N-Number | N171D |
| Manufacturer | DONALD MROWZINSKI |
| Model | RUTAN DEFIANT |
| Year Built | 2020 |
| Manufacturer's Serial Number | 155 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 2 engines |
| Type of Registrant | Individual |
| Owner Name | MROWZINSKI DONALD J |
| Street | 8531 PATTERSON RD |
| City | HILLIARD |
| State | OH |
| Zip Code | 43026-8429 |
| Region | Great Lakes |
| County | Franklin County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2020-12-30 |
| Certificate Issue Date | 2020-08-15 |
| Last Action Date | 2020-08-15 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 50216457 |
| Mode S Code Hex | A11D2F |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N171D.
| Tail Number / N-Number | N171D |
| Manufacturer | BEECH |
| Model | E-55 |
| Year Built | 1974 |
| Manufacturer's Serial Number | TE-1000 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 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 | 2 engines |
| Horsepower per Engine | 285 hp (213 kW) |
| Total Horsepower | 570 hp (425 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | GOLDEN ACRES 90 EARL COURT |
| City | SPANISH TOWN |
| County | Franklin County |
| Country | JM |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-08-23 |
| Last Action Date | 1993-03-05 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2013-07-16 |