As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - DURING C CHECK IT WAS FOUND THAT THE VERTICAL STABILIZER INTERNAL FITTING WAS FRETTING WITH THE AFT FUSELAGE SKIN AT FRAME 75 BY STRINGER 1L. THE FRETTING CAUSED THE SKIN TO CRACK AND WAS DETECTED USING EDDY CURRENT. MAINTENANCE PERFORMED A DOUBLER REPAIR TO THE AFFECTED SKIN AFTER CUTTING OUT THE DAMAGED AREA IAW EC5330-02147 AND EC5310-01317. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.