What was found
SHIP 3325 ON DESCENT, AROUND FL 240 THERE WAS A STRONG ODOR OF MUSTY DIRTY SOCKS WITH A SLIGHT SMELL OF PLASTICS. CORRECTIVE ACTION: T/S. PERFORMED BSI OF HPC STAGE 1 AND STAGE 2. NO EVIDENCE OF OIL WETTING NOTED. C/W DECONTAMINATION OF ECS. FOUND BELLOWS RUPTURED AT TCV 522HH3 ON RT PACK. ALLOWING AMBIENT PACK BAY AIR TO BE VENTURIED INTO PACK AIR. R/R BELLOWS PER A330 AMM 21-53. VERIFIED NO CONTAMINATION IN MIX MANIFOLD. (8766760)