De-Icing Fault Forces Austrian Airlines Flight OS639 Back to Vienna
An Air Baltic-operated Airbus A220 flying for Austrian Airlines returned to Vienna on 24 December after a de-icing system fault, delaying passengers by just over two hours but underscoring heightened winter-weather risks. The incident could ripple through an already busy holiday schedule at Vienna Airport, so companies should build contingency time and verify travellers’ contact details for automatic re-booking.
Dec 26, 2025