| Tail Number / N-Number | N89TT |
| Manufacturer | BELL |
| Model | 206B |
| Year Built | 1975 |
| Manufacturer's Serial Number | 1857 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROLLS-ROYC |
| Engine Model | 250-C20B |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 420 hp (313 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ALPINE HELICOPTER SERVICE INC |
| Street | PO BOX 1405 |
| City | WOODBRIDGE |
| State | CA |
| Zip Code | 95258-1405 |
| Region | Western-Pacific |
| County | San Joaquin County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Multiple |
| Airworthiness Date | 2011-03-29 |
| Certificate Issue Date | 2017-08-15 |
| Last Action Date | 2020-03-18 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 53042266 |
| Mode S Code Hex | AC44B6 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N89TT.
| Tail Number / N-Number | N89TT |
| Manufacturer | MAHONEY |
| Model | SORCERESS 1 |
| Manufacturer's Serial Number | 01 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 67 miles per hour |
| County | San Joaquin County |