As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: RH HORIZONTAL STABILIZER REMOVABLE LEADING EDGE PANEL (341B) - CRACK IN THE EDGE OF THE RIB AT LE STA 151.75 LOCATED, MAINTENANCE INSTALLED NEW SERVICEABLE RIB AT STA.151.75 I.A.W. B-737 AARD CH.51-00-05-1 PAR.1 PER DRAWING 186A1001.