As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING TSR710901 ON #1 ENGINE, FOUND 2 DAMAGE AREA ON ATTACH FLANGE AND 2 EA BAD BOLT LUGS FOR THE OIL INLET COVER ALL DAMAGED AREAS MARKED. GROUNDED - YES. REF ENGINE SHOP MANUAL FOR CFM56-7B SUBTASK 72-56-02-220-067 STEP I AND FIGURE 801 BOLT AREAS THAT ARE DAMAGED ON ATTACH FLANGE ARE OUT OF LIMITS. VERIFIED THREAD DAMAGE. ENGINE S/N # 894832 REMOVED REF T/C # 78471000. DEFECT TRANSFERRED TO EBU SHOP W/O # 1876634.