What was found
AT START OF DESCENT NOTICED A STRONG ACRID/ELECTRICAL SMELL. ALSO REPORTED BY FA AND SEVERAL PASSENGERS AND APPEARED TO MOVE THROUGH CABIN FROM THE FRONT TO THE BACK. NO INDICATION OF SMOKE. SMELL DISSIPATED AFTER SEVERAL MINUTES. REMOVED AND REPLACED AIR COMPRESSOR IN AFT CARGO BAY AREA IN REFERENCE TO APPLICABLE STEPS IN AMM 38-41-02. OPS CHECK GOOD AT THIS TIME. GVI OF ASSOCIATED WIRING WERE GOOD, NO DEFECTS NOTED