What was found
AFT LAV ELECTRICAL PUMP MAKING LOAD NOISE DURING FLUSH OPERATION, F/A AFT REPORT BURNING ODOR A/C RIGHTLAVATORY SYSTEMS- VACUUM GENERATOR; R & R VACUUM GENERATOR IAW AMM 38-31-64, OPS CK GOOD. THIS ACTION CLEARS MDDR 276583. MX-4 UPDATED, PLACARD REMOVED, MCC NOTIFIED.