As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DURING CLIMB THROUGH FL180. FUEL LEFT TANK PUMP 2 LOW PRESSURE MESSAGE DISPLAYED. MAINTENANCE ACCOMPISHED TSM 28-21-00-810-803-A, FOUND BAD CORROSION ON CONNECTOR 27QA, CLEANED CONNECTOR AND PINS ON SWITCH. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.