What was found
SHIP 3251 DISC: ON TAXI OUT STRONG DIRTY SOCK ODOR FOLLOWED BY BURRING RUBBER SMELL FOLLOWED BY STRONG FUEL ORDER. DONNED O2 MASK. GATE RETURN SMELL WAS AFTER APU SHUTDOWN. C/A: C/W NO GO ODI AMDS WORK CARD 0550-2002. DECISION TREE LEADS TO APU. FOUND APU GENERATOR LEAKING. REMOVED AND REPLACED GENERATOR REF A320 AMM 24-23 OPS AND LEAK CHECK GOO. C/W AMDS WORK CARD 4900-2001-2001, 4916-2001 AND 2100-2003 ALSO REPLACED BOTH RECIRC FILTERS. ALSO RAN BOTH ENG NO SMELL NOTED OK FOR SVC. (LP: 5935694)