As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/H HORIZ STAB #5 RIB; STIFFENER #4; HAS 2EA CRACKED FASTENER HOLES ON LOWER FLANGE; ON STIFFENER SIDE. VERIFIED BY HFEC PER 737 NDT 51-00-00; PART 6 PROCEDURE 16.(MARKED) / REPAIRED L/H HORIZ. STAB; INSPAR RIB #5; STIFFENER #4 PER SRM 55-10-09-2R-5. SEE WIP'S FOR OTHER WORK PERFORMED. REFERENCE NON-ROUTINE #G718987 FOR RIB INSTALLATION.