Narrative:

Loss of thrust during xfeed operations on right engine. Apparent flameout, in cruise flight at FL340. Right engine (supply side during procedure, pumps on) lost thrust approximately 5 mins into balancing with xfeed open and left pumps off, correcting 1000 pound imbal. Captain selected flight on ignition switch while I located in-flight engine start irregularity procedure. Transmitted on 121.5 while exiting bravo track and vacating FL340 for FL280. In-flight engine start successful during descent to FL280 at approximately 240 KIAS. Communications with dispatch concurred overweight landing at sfo -- 316000 pounds, flaps 25 degrees, normal touchdown. Braking initiated at 100 KTS. Supplemental information from acn 552489: at cruise FL340, at bluff, while balancing fuel, xfeeds open and feeding from right to left side, right engine rolled back. Was about to turn on boost pumps and close xfeeds when flight attendant knocked on door and first officer went to open door. I turned to see who was entering and took a drink from flight attendant when I heard a bell, looked up and saw the autothrottle disconnected. Then I started noticing electrical system fall off line. I first suspected an electrical generator failure, but then noticed the right engine winding down. I moved the throttle to see if there was a reaction and the engine did not respond. We immediately put the continuous ignition to see if it would wind up, it did not. The engine restarted and responded normally. After talking to maintenance coordination and dispatch, an overweight landing was deemed ok. We kept all pumps on and both xfeeds on until 30 mins from touchdown, then configured normally.

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Original NASA ASRS Text

Title: RETURN LAND MANDATED OF A B767B FLC WHEN THE #2 ENG SUFFERS A FLAMEOUT DURING A XFEEDING OP 300 NM W OF SFO, CA.

Narrative: LOSS OF THRUST DURING XFEED OPS ON R ENG. APPARENT FLAMEOUT, IN CRUISE FLT AT FL340. R ENG (SUPPLY SIDE DURING PROC, PUMPS ON) LOST THRUST APPROX 5 MINS INTO BALANCING WITH XFEED OPEN AND L PUMPS OFF, CORRECTING 1000 LB IMBAL. CAPT SELECTED FLT ON IGNITION SWITCH WHILE I LOCATED INFLT ENG START IRREGULARITY PROC. XMITTED ON 121.5 WHILE EXITING BRAVO TRACK AND VACATING FL340 FOR FL280. INFLT ENG START SUCCESSFUL DURING DSCNT TO FL280 AT APPROX 240 KIAS. COMS WITH DISPATCH CONCURRED OVERWT LNDG AT SFO -- 316000 LBS, FLAPS 25 DEGS, NORMAL TOUCHDOWN. BRAKING INITIATED AT 100 KTS. SUPPLEMENTAL INFO FROM ACN 552489: AT CRUISE FL340, AT BLUFF, WHILE BALANCING FUEL, XFEEDS OPEN AND FEEDING FROM R TO L SIDE, R ENG ROLLED BACK. WAS ABOUT TO TURN ON BOOST PUMPS AND CLOSE XFEEDS WHEN FLT ATTENDANT KNOCKED ON DOOR AND FO WENT TO OPEN DOOR. I TURNED TO SEE WHO WAS ENTERING AND TOOK A DRINK FROM FLT ATTENDANT WHEN I HEARD A BELL, LOOKED UP AND SAW THE AUTOTHROTTLE DISCONNECTED. THEN I STARTED NOTICING ELECTRICAL SYS FALL OFF LINE. I FIRST SUSPECTED AN ELECTRICAL GENERATOR FAILURE, BUT THEN NOTICED THE R ENG WINDING DOWN. I MOVED THE THROTTLE TO SEE IF THERE WAS A REACTION AND THE ENG DID NOT RESPOND. WE IMMEDIATELY PUT THE CONTINUOUS IGNITION TO SEE IF IT WOULD WIND UP, IT DID NOT. THE ENG RESTARTED AND RESPONDED NORMALLY. AFTER TALKING TO MAINT COORD AND DISPATCH, AN OVERWT LNDG WAS DEEMED OK. WE KEPT ALL PUMPS ON AND BOTH XFEEDS ON UNTIL 30 MINS FROM TOUCHDOWN, THEN CONFIGURED NORMALLY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.