As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START BOTH ENGINES RUNNING APU SHUT DOWN, FA'S (2) CALLED FROM AFT GALLEY STATING "STRONG DIRTY SOCK SMELL.". RTG. C/A: OPENED COWLS ON #1 & #2 ENGS FOR BORO. C/W BST #1 HPL & LPL, NO OIL OR LIMITING DAMAGE FOUND PER A320 AMM 71-00. CLOSED COWLS ON #2 ENG REF A320 AMM 71-13 AND 78-36. CLOSED #1 ENG COWLS REF A320 AMM 71-13.