What was found
DURING CHECK-C MAINT IN THE AFT CABIN THE LT SIDEWALL CUSP MEMBRANE HAD CORROSION AT STA 1306 TO 1287, AT WATER LINE 200, LONGERON 18L. REMOVED CORROSION PER SPM 6-80-01. REMOVED DAMAGED AREA AND INSTALLED DOUBLER PER SRM 51-70-4.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CHECK-C MAINT IN THE AFT CABIN THE LT SIDEWALL CUSP MEMBRANE HAD CORROSION AT STA 1306 TO 1287, AT WATER LINE 200, LONGERON 18L. REMOVED CORROSION PER SPM 6-80-01. REMOVED DAMAGED AREA AND INSTALLED DOUBLER PER SRM 51-70-4.