As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A IFSD - NR 3 ENGINE FLAMED OUT AT 35000FT W/BOOST PUMP OFF. CREW VERBALLY REPORTED, LEFT NR 3 MAIN BOOST PUMP SWITCH OFF. THIS WILL NOT ALLOW FUEL TO FILL RESERVOIR. ACCOMPLISHED IDLE HIGH FUEL RUN WITH BOOST/FUEL PUMP SWITCH OFF AND NASH PUMP FUEL PRESSURE WAS 18 PSI IDLE 28 PSI AT FULL.