What was found
NR 1 ENG PYLON I/B SIDE AFT BULKHEAD AREA, THERE ARE 8 LOOSE TRI-WING SCREWS ON STA YN 417.212. REMOVED BOLTS FOR INSPECTION AND CLEARED BOLT HOLES. COMPLIED WITH HFEC INSPECTION ON 8 BOLTS HOLES, NO DEFECT NOTED. INSTALLED BOLTS AND TORQUED PER MM 20-50-02.