As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - LIGHT DIRTY SOCK SMELL ONLY ON DESCENT. PERFORMED TSM 71-00-81-810-805A PER STEP 2(E) PERFORMED BORESCOPE OF LP HP COMPRESSOR. RAN #1 ENGINE AND FOUND OIL WETNESS PRESENT. REQUIRES #1 ENGINE CHANGE PER TSM.023199 AIRCRAFT FERRYING TO LAX FOR ENGINE CHANGE PER ENGINEERING. ENG #1 REQUIRES CHANGING DUE TO INTERNAL OIL LEAK. ENGINE 1 REPLACED ACCORDING TO T/C 330-72-HWI-01-INSTALL.