AAIB finds no safety directive needed in Air India Dreamliner crash AAIB, in its report on Saturday, said that at this stage of investigation, “there are no recommended actions to B787-8 and/or GE GEnx-1B engine operators and manufacturers”.Air India’s Dreamliner VT-ANB, which crashed on June 12, was powered by GEnx-1B engines.According to the report, FAA issued Special Airworthiness Information Bulletin on December 17, 2018, regarding the potential disengagement of the fuel control switch locking feature.”This SAIB was issued based on reports from operators of Model 737 airplanes that the fuel control switches were installed with the locking feature disengaged. The airworthiness concern was not considered an unsafe condition that would warrant airworthiness directive by the FAA,” it said.AAIB also said the fuel control switch design, including the locking feature, is similar on various Boeing airplane models including part number 4TL837-3D, which is fitted in B787-8 aircraft VT-ANB.”As per the information from Air India, the suggested inspections were not carried out as the SAIB was advisory and not mandatory. The scrutiny of maintenance records revealed that the throttle control module was replaced on VT-ANB in 2019 and 2023. However, the reason for the replacement was not linked to the fuel control switch. There has been no defect reported pertaining to the fuel control switch since 2023 on VT-ANB,” the report said.After being in cut-off mode, the fuel control switches of the aircraft’s two engines were turned on later but the London-bound aircraft could not get enough thrust and altitude before it crashed into a building in Ahmedabad killing 260 people.
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