Built in 2018, HB-ZQH is one of eight H145's operated by REGA as of September 2023. Seven are of the version BK-117D-2, while one is a BK-117D-3 (equipped with five main rotor blades). Even though only a few years old, the entire H145 fleet plus all remaining AW109SP's will be replaced by 21 new H145 (BK-117D-3) as from 2024.