As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE DESCENDING THRU 14000 ON APPROACH, ACRID SMELL OCCURRED IN COCKPIT AND CABIN. SMELL DISSIPATED WHEN PACKS PLACED IN HIGH. NOTE: WAS SAME SMELL THAT OCCURRED ON LP 7789484. REMOVED AND REPLACED E/E EXHAUST COOLING VALVE, OPS CK NML. MAIN BATTERY WAS REPLACED ON LP 7789484 FOR CAUSING SMOKE IN CABIN ON GROUND DUE TO OVERHEATING AND CHARGER REPLACED AS PRECAUTION. BATTERY (P/N 30874-001) (S/N 8802429) TSR 463 HRS.