What was found
FLT 1028, FA'S REPORT A SMELLY SOCK ODOR AT 2200 FT ON APPROACH. INSTALLED NEW O-RINGS TO APU IGV ACTUATOR FUEL PIPES IAW AMM 49-23-51. LEAK AND OPS CHECK NORMAL. AND REMOVED AND REPLACED HYD SYS MANUAL RESERVOIR REFILL VALVE FIN 198GM IAW AMM 29-16-00. OPS AND LEAK CHECK GOOD. COMPLIED WITH INFO NOTICE2017-T015J. ACCOMPLISHED LEVEL 1 ECS DECON AND REPLACED RECIRC (HEPA) FILTERS. NO FURTHER ODOR WAS DETECTED.