As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B ELEC HYDRAULIC PUMP CREATED A FLOOR VIBRATION AT MID CABIN FLOOR ASSOCIATED LOUD NOISE AS WELL. FLIGHT ATTENDANT REPORTED AN ELECTRICAL SMELL AT MID AND AFT CABIN.<[01] REMOVED AND REPLACED B SYSTEM EMDP ASSY IAW AMM 29-11-21. OPS/LEAK CHECK GOOD.