FAA Issues Airworthiness Directive for Pratt & Whitney GTF Engines Over Turbine Disk Failure Risk
The Federal Aviation Administration (FAA) has issued an Airworthiness Directive for certain Pratt & Whitney PW1100G, PW1400G, and PW1900G series turbofan engines. This action was prompted by an in-flight shutdown where investigators found a failure of high-pressure turbine (HPT) disks. The root cause was traced to a material anomaly in the powdered metal used during manufacturing. The directive mandates an updated engine life management plan, including accelerated replacement of specific HPT disks and interstage seals. These measures are crucial to prevent uncontained engine failure, which could lead to significant aircraft damage.
Official Source: https://www.faasafety.gov/SPANS/noticeView.aspx?nid=14940
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