| Tail Number / N-Number | N171DH |
| Manufacturer | ENSTROM |
| Model | F-28F |
| Manufacturer's Serial Number | 757 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | HIO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 205 hp (153 kW) |
| Type of Registrant | LLC |
| Owner Name | OUL LLC |
| Street | 2391 ROUTE 2 |
| City | HERMON |
| State | ME |
| Zip Code | 04401-0608 |
| Region | New England |
| County | Penobscot County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1988-09-12 |
| Certificate Issue Date | 2018-09-08 |
| Last Action Date | 2021-05-16 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 50216467 |
| Mode S Code Hex | A11D37 |