Boeing grounds 777X test fleet on failure of engine mounting structure, says report BY Reuters • August 19, 2024August 19, 2024 (Reuters) – Boeing is grounding its 777X test fleet after an inspection showed the failure of a key engine mounting structure, according to a report by the Air Current on Monday. (Reporting by Aatreyee Dasgupta in Bengaluru; Editing by Arun Koyyur)