EASA AD US-2019-16-15
Engine - High-Pressure Compressor Front Hub - Revision of the Airworthiness Limitations Section and the Continued Airworthiness Maintenance Programs
The document titled "Engine - High-Pressure Compressor Front Hub - Revision of the Airworthiness Limitations Section and the Continued Airworthiness Maintenance Programs" is a final rule airworthiness directive issued by the FAA affecting Pratt & Whitney PW1519G, PW1521G, PW1521GA, PW1524G, PW1525G, PW1521G-3, PW1524G-3, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan engines. It addresses corrosion issues found on the high-pressure compressor front hub that could lead to premature cracking. The directive mandates revisions to the Airworthiness Limitations Section and continued airworthiness maintenance programs to incorporate new or more restrictive life limits for the HPC front hub.