As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG OIL LEAK FROM 1ST STAGE CORE AT 5 O'CLOCK AS VIEWED FROM AFT POS. OPEN ENG COWL FOR EXTERNAL OIL INSPECTION ON NR 1 ENG. NO EXTERNAL LEAK FOUND. IT SEEMS THERE WAS A SMALL PUDDLE COMING FROM NR 2 BEARING. OIL AVERAGE ON THIS ENGINE IS IN THE MOMENT 0.05 QTS-HR. OK TO CONTINUE REF MT 79-UA2R1. ENGINE OK FOR SERVICE.