As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND LT NR 1 ELEVATOR HINGE SUPPORT RIB CRACKED IN THREE PLACES ON UPPER CHORD. REMOVED AND INSTALLED NEW SUPPORT RIB. WORK DONE IAW SRM 51-30-2 MM 27-20-1, MM 27-30-05, MM 27-30-81, MM 27-30-61, MM 27-30-00.