The United States’ Federal Aviation Administration (FAA) has issued an emergency airworthiness directive that is interim and requires that engine operators of Pratt & Whitney PW1100G-JM and PW1400G-JM geared turbofans do an ultrasound inspection of the engines’ first-stage and second-stage hubs within a month. The inspections are ordered due to concerns about cracks that could cause engine failure in flight leading the engine to fall apart. The latest airworthiness directive was triggered due to an incident concerning an A320 powered by PW1127GA-JM engines that aborted take-off due to high-pressure compressor (HPC) 7th-stage integrally bladed rotor (IBR-7) separation where the fan blade came
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