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 12A ON LH HORIZONTAL STAB CRACKED @ UPPER SURFACE ATTACH FLANGE AT THE 4TH AND 5TH FASTENER HOLES FROM THE FRONT. REMOVED AND REPLACED RIB 12A (PN 170-62462-601) IAW EMB SRM 51-40-08. SEE EAMS W/O H6673, SN# 0114 FOR WORK PERFORMED. (MAJOR: FCS# 55-10-00-005)