What was found
ETOPS - ENG 1 STALL / SURGE ON THROTTLE UP, RETURN TO BLOCK. TROUBLESHOOTING PER TSM AND BORESCOPE INSPECTION ARE IN-PROGRESS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ETOPS - ENG 1 STALL / SURGE ON THROTTLE UP, RETURN TO BLOCK. TROUBLESHOOTING PER TSM AND BORESCOPE INSPECTION ARE IN-PROGRESS.