What was found
AFTER PUSHBACK, AFT FLT ATTENDANT SMELLED ELECTRICAL TYPE BURNING SMELL IN BOTH AFT LAVS. INSPECTED AFT LAVS AND AFT GALLEY. NOTICED LITTLE ALCOHOL IN AFT GALLEY. NO ELECTRICAL SMELL. REMOVED BOTH AFT LAV TOILET SHROUDS AND LAVS COMPARTMENT. NO DISCREPANCY FOUND. RESEALED BOTH LAVS. INSPECTED APU BATTERY AND CHARGER. BOTH AFT LAV VENT FANS AND WATER COMPRESSOR. INSPECTED OK INSPECTED E/E COMP FOR C/B POP NO C/B POP.