What was found
FLIGHT ATTENDANTS COMPLAINED ABOUT DIRTY SOCK MUSK ODOR IN AIRCRAFT. ODOR SUBSIDED IN CRUISE FLIGHT, HOWEVER BECAME VERY STRONG DURING DECENT INCLUDING THE COCKPIT. ATTENDANTS COMPLAINED ABOUT BURNING EYES, NAUSEA, HEADACHE, BURNING NOSTRILS. COCKPIT ALSO EXPERIENCED STRONG ODOR WITH BURNING EYES DURING DECENT. MAINTENANCE FOUND APU OIL OVER SERVICED. AIRCRAFT WAS GROUNDED.