Narrative:

Climbing out through FL250 we heard a loud bang and the aircraft yawed slightly. Identified left engine problems; RPM stabilized at sub-idle (at 40 percent N2); egt in the normal range but climbing slowly and oil pressure still in the normal range. Selected ignition override with no results. Noted egt still on the rise and decided to run the engine failure checklist. First officer continued to fly the aircraft; we declared an emergency and requested a return to our departure airport.ATC was very cooperative and flight attendants were briefed and prepared for the return landing. Engine failure checklist was easily completed and an uneventful landing was made on runway 18R. Crash fire rescue equipment contacted us and reported temperature readings on the left engine were cool so we continued the taxi back to the gate and parked. Completed log book entries for engine failure and overweight landing. Contacted operations; dispatch; flight manager on duty and maintenance control.

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Original NASA ASRS Text

Title: An air carrier Flight Crew declared an emergency and returned to their departure airport when the left engine failed.

Narrative: Climbing out through FL250 we heard a loud bang and the aircraft yawed slightly. Identified left engine problems; RPM stabilized at sub-idle (at 40 percent N2); EGT in the normal range but climbing slowly and oil pressure still in the normal range. Selected ignition override with no results. Noted EGT still on the rise and decided to run the engine failure checklist. First Officer continued to fly the aircraft; we declared an emergency and requested a return to our departure airport.ATC was very cooperative and flight attendants were briefed and prepared for the return landing. Engine failure checklist was easily completed and an uneventful landing was made on Runway 18R. CFR contacted us and reported temperature readings on the left engine were cool so we continued the taxi back to the gate and parked. Completed log book entries for engine failure and overweight landing. Contacted Operations; Dispatch; Flight Manager On Duty and Maintenance Control.

Data retrieved from NASA's ASRS site as of April 2012 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.