As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT ENG LOW OIL PRESS MSG DURING FLIGHT. COMPLIED WITH QRH. (FLT#5504) FO: 07/24/2018 CLOSED REMOVED AND REPLACED HYDRAULIC PUMP, IDG, AND STARTER CARBON SEALS IAW ENGINE MANUAL. ALSO REMOVED AND REPLACED C-SUMP COMPONENTS . EXHAUST FRAME AND NR 7 CARBON SEAL IAW ENGINE MANUAL. OPS AND LEAK CHECKS GOOD.