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Bloomberg
Boeing Co is finalising a set of three safety enhancements to the engines on its popular 737 Next Generation models to prevent debris from escaping during a failure, according to US regulators.
The Federal Aviation Administration (FAA) outlined the fixes in a letter to the National Transportation Safety Board (NTSB). The NTSB had recommended improvements in the engine designs after a chunk of metal flew off a Southwest Airlines Co engine over Pennsylvania on April 17, 2018, killing a woman who was seated where the metal hit a window.
Once Boeing finalises what are known as service bulletins instructing operators how to strengthen the smooth curved surface at the front of the engine that guides air into the turbine, the FAA plans to mandate them, the agency said in the letter.
The FAA anticipated last April that Boeing would finalise the bulletins by July, though such work is often delayed. The FAA’s letter was earlier reported by Aviation Week.