What was found
ETOPS- DIRYT SOCKS SMELL ON DECENT AND WHEN AT THE GATE WITH APU ON IN SEATTLE. INSPECTED #1 AND #2 ENGINE, RAN ENGINES, NO ODORS. INSPECTED APU, NOTICED ODOR FROM APU BLEED. TROUBLE SHOT PER TSM 05-50-00-810-829-A. TYPE 1. FOUND OIL LEAKING FROM APU GENERATOR. REMOVED AND REPLACED APU GENERATOR PER AMM 24-23-51, AND COMPLETED AMM 24-23-51. OPS CHECK AND LEAK CHECKS, BOTH WERE GOOD. PERFORMED LEVEL A DECONTAMINATION OF THE ECS PER AMM 21-00-00-615-809-A. NO ODORS WERE NOTED. OK FOR SERVICE. APU GENERATOR, OFF PN 33-2423-9-0001, SN 04670. APU GENERATOR, ON PN 33-2423-9-0001, SN 04527.