As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN FOR ACCEPTANCE/BRIDGE PACKAGE MAINTENANCE FOUND RIB 11A CRACKED ON LH HORIZONTAL STAB @ UPPER SURFACE ATTACH FLANGE AT THE 6TH FASTENER HOLE FROM THE FRONT. REMOVED AND REPLACED RIB 11A (PN 170-62783-601) IAW EMB SRM 51-40-08. (MAJOR: FCS# 55-10-00-005)