The engine stalls at high power. Action in PDF: Search for "Stall Characteristics - PW4000." What the PDF reveals: A table showing that a stall at 80% N1 is usually caused by a variable vane actuator (VSV) failure. The PDF includes a diagram showing the exact location of the VSV feedback tube.
: Breakdown of the intake, compressor (low and high pressure), combustion chamber, turbine, and exhaust nozzle. Ground Operations The engine stalls at high power
Successive stages of rotating blades (the compressor) increase the air pressure and temperature. compressor (low and high pressure)