As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE OIL QUANTITY DROPPED TO ZERO AND OIL PRESSURE LIGHT FLICKERING. SUPPLEMENTAL DATA UPDATE AIRCRAFT INDICATED OIL CONSUMPTION FOR SEVERAL DAYS BEFORE THE EVENT. THE SHOP FOUND FUEL/OIL COOLER THE SOURCE OF OIL CONSUMPTION (OIL ENTERED FUEL). THE REPAIR PROCESS OF COOLER HAS BEEN REVIEWED AS A PRECAUTION. COOLERS HAVE BEEN ADDED TO SAM PROGRAM.