What was found
FLIGHT ATTENDANTS DESCRIBED AN ODOR THAT BUILT IN INTENSITY DURING DESCENT FROM 10000 TO 3000'. STARTED AS A BURNING SMELL GRADUATING TO A SWEET / BLEACH ODOR. ORIGINATED NEAR L2 DOOR AND SPREAD FWD TO ROW 26.-PERFORMED TSM 05-50-00-810-831-A FOR CAUSE OF CABIN ODOR, EXTERIOR AC INSPECTION SHOWED NO SIGNS OF OIL LEAKAGE AT ENGS OR APU. AC PACK INLETS CLEARED. PACK OPS WITH APU , ENG1, ENG 2 BLEED, NO ODOR NOTICED. AIRCRAFT OK FOR CONTINUED SERVICE.