What was found
NR 1 PYLON AFT FIXED FAIRING HAS CORROSION IN MULTIPLE FASTENER HOLES AND PITTING ON THE STRUCTURE. COMPLIED WITH ER/A 633933-14 PRI REV 0, 1 AND ER/A 633933-14 REV ORIGINAL , SECTION 1; PERMANENT REPAIR. (LP# 1626425; AIRCRAFT WAS GROUNDED)