As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CPCP CHECK INSPECTION, FOUND CORROSION ON FWD RISER OF 3RD STEP DOWN ON AFT AIR STAIRS. REMOVED CORROSION IAW B727 SRM 51-10-6. CORROSION FOUND TO BE OUT OF LIMITS IAW 51-10-1. INSTALLED DOUBLER REPAIR IAW B727 SRM 51-40-1. CORROSION TASK CARD NUMBER C53-137-01 PART 1 OF 1. NON-ROUTINE TASK CARD NUMBER 002005.