As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) RT HORIZONTAL STABILIZER AFT RIB ATTACHMENT ANGLE CRACKED. A GAP BETWEEN THE AFT RIB ATTACHMENT ANGLE AND SPAR CAUSES CRACKING OF THE ANGLE WHEN THE ATTACHMENT BOLTS ARE TENSIONED. ON REMOVAL OF THE FORWARD STABILIZER ATTACHMENT BOLTS FRETTING WAS EVIDENT AND THE BOLTS WERE SHANK BOUND.