As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENG SHUT DOWN DUE TO AN OIL FILTER BYPASS LIGHT AND SPIKE IN OIL TEMP. AN EMERGENCY WAS DECLARED. REMOVED OIL FILTER DIFFERENTAIL PRESSURE SWITCH ON NR 3 ENGINE PER B747 MM 79-35-01. THIS CLEARS M333490. ENGINE RUN & LEAK CHECK COMPLIED WITH. CLOSING LP 663744.