Narrative:

After takeoff from phx; at approximately 800 ft AGL; the #1 engine had a compressor stall. (We first thought we had blown a tire in the wheel well due to long taxi or we had collided with something or lost an engine.) then 8 seconds later the right engine had a compressor stall. We continued our climb out and cleaned the aircraft up. I called the first flight attendant. He confirmed they heard the 'boom' and reported that passenger saw flames come from the left; then right engine. We checked the engine instruments -- everything was normal. We continued our climb to FL280. I contacted company via comrdo and talked to maintenance control. Maintenance control confirmed that we had experienced 2 compressor stalls; 1 left and 1 right. We were told to land at the nearest suitable airport. We chose lax. I told ATC I wanted a low fly-by to ascertain that there was no damage to the landing gear. We made a normal but delicate overweight landing. The emergency equipment was standing by. After clearing all runways; we paused to allow a visual inspection of the aircraft for fluid leaks; then proceeded to the gate.callback conversation with reporter revealed the following information: the reporter stated the takeoff was made 40 seconds behind a B737-700 with winglets. During investigation of the incident it was determined that there wa an 11 percent reduction in power on the left engine and a greater amount on the right. The assumption was that there may have been wake turbulence from the preceding aircraft causing an interruption in airflow to the engines. The crew noticed turbulence to be light at the most. The reporter noted that the recorded power loss was also at about the same time a normal power reduction would be made for the phase of flight. Thr reporter stated the aircraft was being operated in VNAV.

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Original NASA ASRS Text

Title: AT 800 FT; DEPARTING PHX 40 SECONDS BEHIND A B737-700; A B767 HAS A L ENG COMPRESSOR STALL FOLLOWED 8 SECONDS LATER BY A STALL IN THE R ENG.

Narrative: AFTER TKOF FROM PHX; AT APPROX 800 FT AGL; THE #1 ENG HAD A COMPRESSOR STALL. (WE FIRST THOUGHT WE HAD BLOWN A TIRE IN THE WHEEL WELL DUE TO LONG TAXI OR WE HAD COLLIDED WITH SOMETHING OR LOST AN ENG.) THEN 8 SECONDS LATER THE R ENG HAD A COMPRESSOR STALL. WE CONTINUED OUR CLBOUT AND CLEANED THE ACFT UP. I CALLED THE FIRST FLT ATTENDANT. HE CONFIRMED THEY HEARD THE 'BOOM' AND RPTED THAT PAX SAW FLAMES COME FROM THE L; THEN R ENG. WE CHKED THE ENG INSTS -- EVERYTHING WAS NORMAL. WE CONTINUED OUR CLB TO FL280. I CONTACTED COMPANY VIA COMRDO AND TALKED TO MAINT CTL. MAINT CTL CONFIRMED THAT WE HAD EXPERIENCED 2 COMPRESSOR STALLS; 1 L AND 1 R. WE WERE TOLD TO LAND AT THE NEAREST SUITABLE ARPT. WE CHOSE LAX. I TOLD ATC I WANTED A LOW FLY-BY TO ASCERTAIN THAT THERE WAS NO DAMAGE TO THE LNDG GEAR. WE MADE A NORMAL BUT DELICATE OVERWT LNDG. THE EMER EQUIP WAS STANDING BY. AFTER CLRING ALL RWYS; WE PAUSED TO ALLOW A VISUAL INSPECTION OF THE ACFT FOR FLUID LEAKS; THEN PROCEEDED TO THE GATE.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE TKOF WAS MADE 40 SECONDS BEHIND A B737-700 WITH WINGLETS. DURING INVESTIGATION OF THE INCIDENT IT WAS DETERMINED THAT THERE WA AN 11 PERCENT REDUCTION IN POWER ON THE L ENG AND A GREATER AMOUNT ON THE R. THE ASSUMPTION WAS THAT THERE MAY HAVE BEEN WAKE TURB FROM THE PRECEDING ACFT CAUSING AN INTERRUPTION IN AIRFLOW TO THE ENGS. THE CREW NOTICED TURB TO BE LIGHT AT THE MOST. THE RPTR NOTED THAT THE RECORDED POWER LOSS WAS ALSO AT ABOUT THE SAME TIME A NORMAL POWER REDUCTION WOULD BE MADE FOR THE PHASE OF FLT. THR RPTR STATED THE ACFT WAS BEING OPERATED IN VNAV.

Data retrieved from NASA's ASRS site as of January 2009 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.