As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN GEAR DISPLAYS INTERMITTENT WHITE AND AMBER ON EICAS, DURING RETRACTION AND THUMPING NOISE HEARD ON FIRST OFFICERS SIDE HYDRAULIC COMPARTMENT. R & R #100 UPLOCK BOX IAW AMM 32-33-10 UP TO STEP K6. AIRCRAFT REQUIRES FUNCTIONAL CHECK OF LDG EMERGENCY EXTENSION, OPS & LEAK CHECK OF MLG EXTEND/RETRACT & VERIFICATION OF NO LG NOSE UP PROXIMITY SW FAIL ON CMC IAW AMM 32-33-10 STEPS K6 TO K8.