As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE ALT FL320, 3 HOURS INTO FLT, LEFT ENGINE OIL QUANTITY WENT TO ZERO. OIL PRESSURE WAS 45 PSI AND GRADUALLY DECREASED TO 11 PSI TRANSIENT 10 PSI EXPERIENCED ON FINAL APPROACH LEFT THRUST LEVER REDUCED TO IDLE. NO REVERSE. ALL OTHER ENG PARAMETERS NORMAL. OIL PUMP DISCHARGE MANIFOLD PIPE BROKEN. PIPE REPLACED. ENGINE RUN-UP 5 MIN. ALL PARAMETERS NML. NO LEAK DEBRIS. INFO ENG OIL SERVICED 48 PINTS WITH EXXON 2380 ENG OIL, MPN 1978M64G01.