| Tail Number / N-Number | N621MJ |
| Pending N-Number Change | N865SH |
| Manufacturer | HAWKER BEECHCRAFT CORP |
| Model | B300 |
| Year Built | 2012 |
| Manufacturer's Serial Number | FL-820 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 19 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PT6A-60A |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,050 hp (783 kW) |
| Total Horsepower | 2,100 hp (1,567 kW) |
| Type of Registrant | LLC |
| Owner Name | SAFE HARBOR AVIATION LLC |
| Street | 308 LETTERMAN RD |
| City | KNOXVILLE |
| State | TN |
| Zip Code | 37919-6328 |
| Region | Central |
| County | Knox County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2012-11-29 |
| Certificate Issue Date | 2019-09-26 |
| Last Action Date | 2022-04-20 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 52015420 |
| Mode S Code Hex | A81B10 |