As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE SURGED 3 TIMES IN 20 MINUTES. *S/D* FOUND NO EPCS MESSAGES OR EVENT RECORDINGS ON ARRIVAL. CONTACTED ENGINE DESK WHICH REPORTED NO ABNORMAL PARAMETERS. PERFORMED VISUAL AND CHIP DETECTOR CHECKS, ALL FINDINGS NORMAL. PERFORMED POWER ASSURANCE CHECK. ALL INDICATIONS NORMAL.