As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION DAMAGES WERE FOUND ON THE LH HORIZONTAL STABILIZER UPPER SKIN, BETWEEN RIB 3 / RIB 13, AT THE REAR SPAR ATTACHMENT HOLES.(<P ><SPAN>CORROSION WAS REMOVED AND / REPAIRED IN ACCORDANCE WITH MEXICANA MRO TRE6755038 AND BOEING SR 3-5021676078.</SPAN></P>)