| Tail Number / N-Number | N399TT |
| Manufacturer | CESSNA |
| Model | 208 |
| Year Built | 1986 |
| Manufacturer's Serial Number | 20800099 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PT6A-60A |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 1,050 hp (783 kW) |
| Type of Registrant | LLC |
| Owner Name | S3B LEASING LLC |
| Street | 60 MAY ST |
| City | BANGOR |
| State | ME |
| Zip Code | 04401-6439 |
| Region | New England |
| County | Penobscot County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1986-09-03 |
| Certificate Issue Date | 2016-03-22 |
| Last Action Date | 2021-10-18 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 51122763 |
| Mode S Code Hex | A4A5F3 |