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    Compressor Stall: Causes and Prevention

    pilotmall.com/blogs/news/compressor-stall-what-it-is-how-to-recover-prevention

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    Understanding Compressor Stall
    • Compressor stall occurs when airflow over blades is disrupted in gas turbine engines
    • Similar but more severe issue called compressor surge can halt airflow completely
    • Stalls can happen at low altitudes and high speeds during takeoff
    Causes
    • Foreign objects, sand, and dirt erosion lower surge line
    • Bird strikes cause complete loss of surge margin
    • Turbulent airflow and gun firing can produce inlet distortion
    Recovery Procedures
    • Reduce thrust on affected engine immediately
    • Adjust angle of attack to restore normal airflow
    • Perform full engine restart if necessary
    • Have mechanic perform maintenance after landing
    Prevention Methods
    • Monitor and adjust critical angle of attack (AOA)
    • Manage air pressure through bleeding off and variable vanes
    • Avoid sudden throttle changes
    • Prevent inlet distortion to maintain stable airflow
    • Regular maintenance helps identify potential issues

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