Test registration C-GADL. Registered new to Air Zermatt in September 2023, HB-XDA is the 3rd Bell 429 to join Air Zermatt, after HB-ZSU (c/n 57067) in 2012 and HB-ZOZ (c/n 57330) in 2018. The three HEMS Bell 429's give Air Zermatt the ability to always have two ready on 24/7 stand-by, one based in Zermatt and the other one in Gampel (LSEG). Between September 1969 and January 2000, registration HB-XDA has already been applied to helicopter SA-316B Alouette III (c/n 1609), also operated by Air Zermatt.