As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** ON TRACK AT AFT CARGO BAY BS727A - BS727D RBL13 WL156. / REMOVED CORROSION ON SEVERAL AREAS FROM BS 727A TO BS 867 OF ACB TRACK THE LOST MATERIAL IS MORE THAN 50% OF THE ORIGINAL THICKNESS PER REF SRM 51-10-02-0G THEREFORE; FOUND TO BE OUT OF LIMIT PER REF SRM 53-00-53-1A-2 STEP 4B. REMOVED AND REPLACED TRACK PART NBR 146A7501-25 PER REF B737 SRM 51-40-02-0G AND DWG NBR 146A7500