| Tail Number / N-Number | N804ER |
| Manufacturer | DIAMOND AIRCRAFT IND INC |
| Model | DA 40 |
| Year Built | 2003 |
| Manufacturer's Serial Number | 40.311 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | LLC |
| Owner Name | DIAMOND AIRCRAFT SALES OF KENTUCKY LLC |
| Street | 2036 STATE ROUTE 136 W |
| City | HENDERSON |
| State | KY |
| Zip Code | 42420-9662 |
| Region | Central |
| County | Henderson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2003-08-12 |
| Certificate Issue Date | 2023-01-04 |
| Last Action Date | 2023-01-04 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 52570455 |
| Mode S Code Hex | AAF12D |