As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE LOW OIL PRESSURE/FILTER BYPASS LIGHT CAME ON. FOLLOWED ABNORMAL CHECKLIST NO HELP. ENGINE SHUT DOWN AS A PRECAUTION. OIL PRESSURE STAYED AT 15 PLUS PSI AFTER SHUT DOWN. CHECKED MAIN ENGINE OIL FILTER-CHECKS OK. REPLACED OIL FILTER AND REPLACED NR 3 LOW OIL PRESSURE SWITCH, LEAK AND OPS CHECK OK PER MM CHAPTER 79-33-0 AND MM CHAPTER 79-33-01. (X)