As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R/H STIFFENER TEE BULB IN APU TORQUE BOX HAS CORROSION AT STA 1125 AROUND AFT LOWER PLENUM ASSY BOLT HOLE. / REMOVED CORROSION FROM STIFFENER FOUND TO BE OUT OF LIMITS PER SRM 53-80-13-1A-2. REMOVED AND REPLACED RIGHT STIFFENER; PART NUMBER: 148A8640-14 PER SRM 51-40-02. ATA CODE IS CORRECT AS 53-98 FOR CORRODED PART. REFERENCE CARD FOR WORK ACCOMPLISHED AND INDIVIDUAL SIGN OFFS.