What was found
AIR RETURN TO ORD DUE TO ENGINE 1 SURGE, ALL INDICATIONS ABNORMAL. QRH PERFORMED, ENGINE SHUT DOWN. NO EICAS ALERTS OR STATUS MESSAGES.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR RETURN TO ORD DUE TO ENGINE 1 SURGE, ALL INDICATIONS ABNORMAL. QRH PERFORMED, ENGINE SHUT DOWN. NO EICAS ALERTS OR STATUS MESSAGES.