As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - DURING DESCENT OF FLT 557, THE LT ENGINE SHUT DOWN. THE LT FUEL TANK TRANSFERRED FUEL INTO THE CENTER TANK WITH THE CENTER TANK FUEL BOOST PUMPS OFF. THE CENTER TANK FUEL BOOST PUMPS WERE TURNED ON AND FUEL TRANSFERRED BACK INTO THE LT TANK. THE LT ENGINE WAS RESTARTED AND OPERATED NORMALLY. REFERENCE: OPERATOR CONTROL ASAA9680115.