What was found
FUEL JETTISON SYSTEM FAILED. THE JETTISON SYSTEM FAULT LIGHT ILLUMINATED AND THE LH JET PUMP EICAS MESSAGE APPEARED WHEN THE LH JETTISON PUMP FAILED TO GENERATE SUFFICIENT PRESSURE TO SET THE PRESSURE SWITCH. THIS WAS A RESULT OF THE PUMPS SHIP SIDE ELECTRICAL CONNECTOR BEING PINNED INCORRECTLY. TWO OF THE THE AC PHASE LEADS AT CONNECTOR D12188 WERE SWAPPED. REPINNED ELECTRICAL CONNECTOR D12188 PER 767 WDM 28-31-21.