What was found
SHIP 3234 DISC: AFTER APU START, FA'S NOTICED STRONG "DIRTY SOCK" ODOR IN AFT PORTION OF AC. FO NOTICED SAME ODOR SHORTLY AFTER. DISSIPATED SLIGHTLY AFTER APU BLEED WAS TURNED OFF, BUT CAME BACK AFTER BLEED TURNED BACK ON. C/A: RUN APU BLEED CONFIRMED "DIRTY SOCK" SMELL PERFORMED LEVEL A DECONTAMINATION OF ECS IAW W/C 2100-2-007. NO ODORS NOTED. PER MCC R/R BOTH REC. FILTERS. NOTIFIED MCC. OK FOR SERVICE. (LP: 5137856)