As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HORIZONTAL STAB INSPAR RIB ASSY 4 (STAB STA 120.30) STIFFENER 4 HAS A CRACK NEAR LOWER SKIN / REMOVED AND REPLACED WITH A NEW RIB AT LEFT HORIZONTAL STAB STA 120.30 I/A/W B737 SRM 51-40-02-0G-0 AND BOEING DRAWING 182A5304 REV C P/N 182A5304-3; TAG #CT3420