As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7827 - LAX TO SFO - FLIGHT CREW REPORTED SMOKE IN CABIN. AIRCRAFT WAS FERRY FLIGHT TO ONT MX HANGER WHERE MX PERSONNEL REMOVED AND REPLACED NR 1 ENG, OPERATIONALLY CHECKED GOOD AND AIRCRAFT WAS RETURNED FOR SERVICE IN AIRWORTHY CONDITIONS. NR 4 ENGINE CARBON SEAL EXHIBITED SIGNS OF HEAVY LEAKAGE(SEGMENTS FULLY WETTED WITH OIL AND COCKING ON THE EXTERIOR OF HOUSING). NR 4 CARBON SEAL WAS REPLACED WITH POST SB72-348 STANDARD.