As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A, WHEN PACK LAND 3 WAS TURNED ON AFTER TAKEOFF OILY SMOKE FILLED THE FLIGHT DECK. PACK 1 AND 3 WAS TURNED OFF AND PACK 2 TURNED ON. SMOKE CLEARED AND FLIGHT CONTINUED TO PHL. REMOVED AND CLEANED NR 1 PACK COALESCER BAG. RAN PACKS FROM APU, OPS CHECK GOOD. RAN PACKS FROM ENG 1 & 4, SMELL OF SMOKE AGAIN FROM NR 1 ENG. NR 1 ENGINE REQUIRES CHANGE DUE TO RUMBLING AND OIL CONSUMPTION.