As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE FAN CASE NOSE COWL ATTACH ANGLE HAS EVIDENCE OF CORROSION AT THE 4 O'CLOCK AND 5'OCLOCK POSITIONS. AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED LEFT ENGINE IAW MCM 71-93-01, 71-95-22, 71-94-45, 71-94-03, AND 71-94-43. OPERATIONAL CHECK GOOD.