As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:ETOP ENGINE OIL FUMES ENTERED CABIN. FUMES STOPPED WITH LEFT ENGINE BLEED CLOSED. ALL PARAMETERS NORMAL (STRONG ODOR) TET = 23832, TEC = 7538. LEFT ENG REQ BORESCOPE PER FIM 79-21-00. BORESCOPED PER 72-30-00. FOUND STAINS ON BLADES & IGVS. A/C REQ LEFT ENG CHANGE PER ENGINEERING. INSTALLED BORESCOPE PLUGS & CLOSED ENG. REMOVED AND REPLACED ENG IAW TC 6002.