Shares of Airbus tumbled 9.5% on Tuesday after Europe’s biggest plane maker made an unscheduled announcement to cut its outlook for 2024. The group expects to deliver 770 commercial aircraft this year, compared with the previously projected 880. Airbus has moved the target of producing 75 A320 family aircraft per month from 2026 to 2027. Additionally, it has decided to record a charge of around €0.9 billion for the first half of 2024 due to risks associated with certain telecommunications, navigation, and observation programmes. It has also reduced the forecast of free cash flow to €3.5 billio…