What was found
NR 1 ENGINE FLAMED OUT AT FL310 M80 CRUISE FLT WHEN ENGINEER OPENED NR 1 CROSSFEED THEN TURNED OFF NR 2 MAIN BOOST PUMP TO TRANSFER FUEL FROM NR 1 TO NR 2 MAIN CROSSFEEDS WERE OPENED AND START SWITCH TO ALL ENGINES BOTH, RESTARTED ENGINES ***SUPPLEMENTAL MRR*** SEE LOG PAGE 526934 FOR MAINT ACCOMPLISHED. C/W MN 71-00-00 ENGINE FLAMED OUT CK AT HIGH POWER WAS UP AND P167 SYS C KS NORMAL. NO FLAME OUT. COPIED WHAT FE STATES AND SYS CHECKS GOOD