Narrative:

Departing sfo from runway 1R, during initial climb out, experienced an engine failure of the left engine. The aircraft was accelerating during the clean-up process with the gear up and flaps 1 degree. A loud bang was heard followed by a slight vibration in the aircraft and then the loss of power on the left engine. The left engine egt then started to climb (rise) rapidly. Both pilots acknowledged egt rise and the left engine cutoff switch was placed to the 'off' position. We declared an emergency due to an engine failure with sfo bay departure control and were given a heading and altitude for a downwind landing runway 28R sfo. The first officer continued to fly the aircraft while I completed the engine failure checklist. The lead flight attendant came forward and quickly briefed her to prepare the cabin for a landing in approximately 6-7 mins. We were vectored for a 10-15 mi final for runway 28R sfo and cleared for the ILS. We confirmed and requested the emergency equipment standing by as a precaution. Landing was accomplished with no further complications and the runway was cleared for the aircraft to be inspected by the emergency personnel. After acknowledgement all was safe, we proceeded to the gate. Upon inspection at the gate, it was initially determined as a self-contained failure of the turbine section of the engine with some warping of the outer cowl.

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Original NASA ASRS Text

Title: ENG FAILURE ON TKOF.

Narrative: DEPARTING SFO FROM RWY 1R, DURING INITIAL CLBOUT, EXPERIENCED AN ENG FAILURE OF THE L ENG. THE ACFT WAS ACCELERATING DURING THE CLEAN-UP PROCESS WITH THE GEAR UP AND FLAPS 1 DEG. A LOUD BANG WAS HEARD FOLLOWED BY A SLIGHT VIBRATION IN THE ACFT AND THEN THE LOSS OF PWR ON THE L ENG. THE L ENG EGT THEN STARTED TO CLB (RISE) RAPIDLY. BOTH PLTS ACKNOWLEDGED EGT RISE AND THE L ENG CUTOFF SWITCH WAS PLACED TO THE 'OFF' POS. WE DECLARED AN EMER DUE TO AN ENG FAILURE WITH SFO BAY DEP CTL AND WERE GIVEN A HDG AND ALT FOR A DOWNWIND LNDG RWY 28R SFO. THE FO CONTINUED TO FLY THE ACFT WHILE I COMPLETED THE ENG FAILURE CHKLIST. THE LEAD FLT ATTENDANT CAME FORWARD AND QUICKLY BRIEFED HER TO PREPARE THE CABIN FOR A LNDG IN APPROX 6-7 MINS. WE WERE VECTORED FOR A 10-15 MI FINAL FOR RWY 28R SFO AND CLRED FOR THE ILS. WE CONFIRMED AND REQUESTED THE EMER EQUIP STANDING BY AS A PRECAUTION. LNDG WAS ACCOMPLISHED WITH NO FURTHER COMPLICATIONS AND THE RWY WAS CLRED FOR THE ACFT TO BE INSPECTED BY THE EMER PERSONNEL. AFTER ACKNOWLEDGEMENT ALL WAS SAFE, WE PROCEEDED TO THE GATE. UPON INSPECTION AT THE GATE, IT WAS INITIALLY DETERMINED AS A SELF-CONTAINED FAILURE OF THE TURBINE SECTION OF THE ENG WITH SOME WARPING OF THE OUTER COWL.

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.