As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CROSS FEED (ON) IN AIR (2 OCCASIONS). CROSS FEED VALVES FAILED TO OPEN, BOTH FUEL BOOST PUMPS (LOW PRESS) CAME ON. EICAS MESSAGES APPROPRIATE AMBER FUEL PRESS LOW L-R ON. TROUBLESHOT PROBLEM TO LT BOOST PUMP. REMOVED FAILED BOOST PUMP AND INSTALLED A NEW BOOST PUMP. OPERATION CHECKS GOOD. LEAK CHECKS GOOD. WORK PERFORMED IAW CH 28-20-00 OF THE CES 680 MM.