As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE LOST POWER, ALL OF ITS PARAMETERS DISPLAYED IDLE ON ECIAS. POWER RECOVERED IMMEDIATELY. MINUTES LATER SAME ENGINE LOST POWER AGAIN DURING CLIMB OUT. ALL ENGINE PARAMETERS DISPLAYED IDLE ON ECIAS BUT THIS TIME POWER WAS NOT RECOVERED. ENGINE CHECKLIST PERFORMED BY CREW. ENGINE WAS SHUTDOWN IAW PROPER PROCEDURES. ACFT RETURNED TO DEPARTURE SAFELY.