Investigators have yet to issue their final report on a Southwest Airlines Co. flight last month that ended in an emergency landing and a passenger’s death. But one thing is clear: Regulators had been weighing enhanced inspection requirements covering a suspect engine part for nearly two years—an unusually long time—after warnings about it first emerged. Questions about the time it took regulators to mandate more comprehensive inspections—and whether an alternate response would have made a difference in uncovering what emerged...

Source: Wall Street Journal May 20, 2018 11:03 UTC