As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 87 - MIAMI - NR 4 ENGINE OIL LOSS TWO GALLONS IN CLIMB AND 2 GALLONS MORE AT REDUCED POWER, RETURNED TO MIAMI. INSTALLED HYDRAULIC PUMP CAVITY BOTTOM PLUG. ENGINE RUN-UP, NO LEAK NOTED. OVERWEIGHT LANDING INSPECTION PERFORMED PER CARD HVY PHASE 1. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.