As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ISP - AFTER TAKEOFF, CABIN AND COCKPIT FILLED WITH SMOKE (ENGINE OIL FUMES). EMERGENCY ACTIONS WERE TAKEN AND AIRCRAFT RETURNED TO ISP WITHOUT INCIDENT. BORESCOPE INSPECTION OF ENGINE COMPRESSOR SECTION REVEALED OIL PRESENT IN THE NR 4 AND NR 5 BEARING CARBON SEAL CAVITY. ENGINE TEAR DOWN WILL BE REQUIRED. FINAL REPORT TO FOLLOW. LANDINGS, 6,624.