As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING B-04 CHECK EXFOLIATION CORROSION WAS FOUND ON DUMMY RAIL Y503 LT BETWEEN FR 14 AND FR 16. MAINTENANCE REMOVED DUMMY RAIL Y503 LEFT FROM FR 14 TO FR 16; FABRICATED A NEW REPLACEMENT RAIL; INSTALLED REPAIR PART IAW A319 SRM 51-42-11 FIG 12 & 18.