As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: 10 INCHES BY 1 INCH CORRODED AREA 1016 BULKHEAD BOTTOM LEFT SIDE AREA OF DIAPHRAGM RETAINER. LOCATED AT STA 1016 AND LEFT BUTT LINE 62 CORROSION OUT OF LIMITS. REMOVED AND REPLACED WITH FABRICATION PER BOEING DRAWING 65-54862.