As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3142 - UPON START OF APU AT ENGAGE OF PACKS. WE GOT THE "DIRTY SOCK SMELL". CORRECTIVE ACTION: ACCOMPLISHED AMDS WC 0550. FOUND APU AT FAULT. ACCOMPLISHED DECONTAMINATION OF ECS PER AMDS WORK CARD 2100-2005. ALL LEAK AND OPS CHECKS GOOD. (7971088)