| Tail Number / N-Number | N491D |
| Manufacturer | PIPER |
| Model | PA-28-140 |
| Year Built | 1973 |
| Manufacturer's Serial Number | 28-7325632 |
| 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 | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 107 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | KEY CITY FLIERS |
| Street | 7373 CAVES RD |
| City | MAQUOKETA |
| State | IA |
| Zip Code | 52060-9779 |
| Region | Central |
| County | Jackson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-08-10 |
| Certificate Issue Date | 2008-10-14 |
| Last Action Date | 2021-07-20 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 51412032 |
| Mode S Code Hex | A6141A |