What was found
PHX - LEFT ENGINE SURGED DURING DECELERATION AT 38,000 FEET. ENGINE OPERATION ABNORMAL AFTER SURGE, ENGINE WAS NOT SHUT DOWN. EGT 30-50 HIGHER THAN RT ENGINE, VIBES TO 1.8. TROUBLESHOT PER FIM 75-32-00, INSPECTED INLET, EXHAUST, CHIP DETECTOR ON DEFECTS. ACCOMPLISHED L/P FAN BLADE INSPECTION 75-31-13, NO DEFECTS NOTED. ACCOMPLISHED MAXIMUM TAKEOFF ENGINE RUN VIBES.