| Tail Number / N-Number | N102UM |
| Manufacturer | AEROSPATIALE |
| Model | AS-355E TWIN STAR |
| Year Built | 1981 |
| Manufacturer's Serial Number | 5075 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ALLISON |
| Engine Model | 250-C20 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 420 hp (313 kW) |
| Total Horsepower | 840 hp (627 kW) |
| Type of Registrant | Corporation |
| Owner Name | TIMBERLAND HELICOPTERS INC |
| Street | PO BOX 1345 |
| City | ASHLAND |
| State | OR |
| Zip Code | 97520-0045 |
| Region | Northwest Mountain |
| County | Jackson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1984-04-19 |
| Certificate Issue Date | 2017-05-02 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 50006760 |
| Mode S Code Hex | A00DF0 |