| Tail Number / N-Number | N189DM |
| Manufacturer | MABBUTT DARWIN E |
| Model | RV-4 |
| Manufacturer's Serial Number | 1712 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| 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) |
| Type of Registrant | Co-Ownership |
| Owner Name | MABBUTT JEFF A |
| Other Names |
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| Street | 880 E 450 N |
| City | HEBER CITY |
| State | UT |
| Zip Code | 84032-3019 |
| Region | Northwest Mountain |
| County | Wasatch County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1989-07-14 |
| Certificate Issue Date | 2000-05-11 |
| Last Action Date | 2020-02-12 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 50261162 |
| Mode S Code Hex | A16272 |