As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: LEFT HAND HORIZONTAL STABILIZER LOWER SKIN HAS VISUAL CRACK INDICATION ALONG THE RIB LINE AT STAB STA 184.70 LOCATED 17 INCHES FROM THE AFT SPAR. INSTALLED DOUBLER AND FILLER. PER BOEING 737-NG SRM 55-10-01-2R-1.