As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG 1 OIL QTY DROPPED DOWM TO 7.2 QT IN CRUISE. THE ENG WAS SHUTDOWN TO PREVENT FURTER OIL LOSS OIL QTY REAININDED 3.2QT, AFTER SHUTDOWN AND RAISED TO 6.0 QT AT LANDING". SE PROCEDE A REALIZAR EL TROUBLESHOOTING: TSM TASK 79-31-00-810-832-A HIGH OIL CONSUMPTION RATE, ON ENGINE 1, Y EL AMM 79-21-41-200-801-A - EXAMINE THE FUEL OIL HEAT EXCHANGER (FOHE) FOR INTERNAL LEAKS. IT WAS FOUND FUEL OIL HEAT EXCHANGER P/N: 55003001-21, S/N: HEX50-0645 WITH LEAK.