Narrative:

On arrival from abq to dfw flight on sep/xx/94 normal single engine taxi at dfw. At gate ran normal engine shutdown checklist. When external power came on line APU was shut down and normal transfer of power was observed on panel indicating external power was providing power to both left/right busses. Cockpit cleanup was accomplished and we departed to the next gate for flight to mci. Time between flts was 1 hour. The first officer and I did not leave in any rush due to just going to the next gate. We did not notice any left engine noise on the jet bridge ramp was basically empty at this time. First officer then went to next gate for preflight of outbound flight. Approximately 10- 15 mins later we were notified of left engine running on auxiliary current and maintenance had shut down the engine. I was debriefed by maintenance that the engine was running and had been shut down, but he found the status of the cockpit had been through a complete shutdown checklist with the exception of the left engine running. As an added note, debriefs have been written by the flight attendants that they were in the back of the aircraft cleaning and stated it was real quiet and they would have heard the left engine running.

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Original NASA ASRS Text

Title: ACR FLC LEAVES #1 ENG RUNNING AT RAMP AFTER ACFT ARR AND CHKLIST COMPLETED.

Narrative: ON ARR FROM ABQ TO DFW FLT ON SEP/XX/94 NORMAL SINGLE ENG TAXI AT DFW. AT GATE RAN NORMAL ENG SHUTDOWN CHKLIST. WHEN EXTERNAL PWR CAME ON LINE APU WAS SHUT DOWN AND NORMAL TRANSFER OF PWR WAS OBSERVED ON PANEL INDICATING EXTERNAL PWR WAS PROVIDING PWR TO BOTH L/R BUSSES. COCKPIT CLEANUP WAS ACCOMPLISHED AND WE DEPARTED TO THE NEXT GATE FOR FLT TO MCI. TIME BTWN FLTS WAS 1 HR. THE FO AND I DID NOT LEAVE IN ANY RUSH DUE TO JUST GOING TO THE NEXT GATE. WE DID NOT NOTICE ANY L ENG NOISE ON THE JET BRIDGE RAMP WAS BASICALLY EMPTY AT THIS TIME. FO THEN WENT TO NEXT GATE FOR PREFLT OF OUTBOUND FLT. APPROX 10- 15 MINS LATER WE WERE NOTIFIED OF L ENG RUNNING ON AUX CURRENT AND MAINT HAD SHUT DOWN THE ENG. I WAS DEBRIEFED BY MAINT THAT THE ENG WAS RUNNING AND HAD BEEN SHUT DOWN, BUT HE FOUND THE STATUS OF THE COCKPIT HAD BEEN THROUGH A COMPLETE SHUTDOWN CHKLIST WITH THE EXCEPTION OF THE L ENG RUNNING. AS AN ADDED NOTE, DEBRIEFS HAVE BEEN WRITTEN BY THE FLT ATTENDANTS THAT THEY WERE IN THE BACK OF THE ACFT CLEANING AND STATED IT WAS REAL QUIET AND THEY WOULD HAVE HEARD THE L ENG RUNNING.

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.