| Tail Number / N-Number | N644DS |
| Manufacturer | DIAMOND AIRCRAFT IND INC |
| Model | DA 40 |
| Year Built | 2006 |
| Manufacturer's Serial Number | 40.614 |
| 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 | IO-360-M1A+ |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | LLC |
| Owner Name | FITZROY AVIATION LLC |
| Street | 512A SIMONDS LOOP |
| City | SAN FRANCISCO |
| State | CA |
| Zip Code | 94129-1398 |
| Region | Western-Pacific |
| County | San Francisco County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2006-01-23 |
| Certificate Issue Date | 2017-05-04 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 52072163 |
| Mode S Code Hex | A87473 |