As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DECENT AT ABOUT 9K, STRONG DUSTY ELEC SMELL IN AFT ENTRY AREA. THE WING AND ENGINE HEAT OFF. DEACTIVATED GALLEY POWER AND LAV FLUSH MOTORS AS PRECAUTION. INSPECTED AND OPERATED SYSTEMS, UNABLE TO DUPLICATE. SUBSEQUENT OCCURENCE ISOLATED PROBLEM TO HIGH BLEED PRESSURE TO NR 2 PACK. REPLACED HPRSOV, LEAK AND OPERATION CHECK NORMAL. NO ODOR NOTED.