| Tail Number / N-Number | N491K |
| Manufacturer | DEHAVILLAND |
| Model | DHC-3 |
| Year Built | 1962 |
| Manufacturer's Serial Number | 434 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R1340 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Type of Registrant | LLC |
| Owner Name | KATMAI AIR LLC |
| Street | 4125 AIRCRAFT DR |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99502-1050 |
| Region | Alaskan |
| County | Anchorage Municipality |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1996-07-23 |
| Certificate Issue Date | 2019-05-29 |
| Last Action Date | 2021-12-14 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 51412260 |
| Mode S Code Hex | A614B0 |