Alaska Airlines operates a fleet of Boeing 737 MAX aircraft, specifically the 737-9 MAX variant. These planes were grounded temporarily due to safety concerns. One notable incident involved a brand-new 737 Max 9 experiencing rapid decompression and an in-flight loss of a mid-aft door and interior sidewall. As a result, Alaska Airlines took the precautionary step of grounding its entire fleet of 65 Boeing 737-9 MAX planes to conduct safety and maintenance inspections.