Narrative:

During engine shutdown at the gate, the right engine was not shut down and the crew left the aircraft. Our company uses single engine taxi-in procedures in which the left engine is shut down while taxiing in. Once in the gate with chocks in, the crew is directed to start automatically initiated shutdown flows, part of which directs the captain to shut down the right engine. My flow was somehow interrupted and the engine was not shut down. All flows are backed by written checklists, but the checklist was never performed. I believe because of the way the checklist is written we both thought the other had done it. All checklists indicate who will perform them, except the shutdown from the line. This led both pilots to believe the other was performing the checklist. Compounding the problem is the fact that the from-the-line checklist is a silent checklist, so neither pilot was expecting to hear anything. The final problem is there is no direction from the flight standards manual as to whom will perform the shutdown checklist.

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Original NASA ASRS Text

Title: A CL65 FLC DEPARTED THEIR ACFT WITH AN ENG RUNNING WHILE PARKED AT THE GATE AT ROA.

Narrative: DURING ENG SHUTDOWN AT THE GATE, THE R ENG WAS NOT SHUT DOWN AND THE CREW LEFT THE ACFT. OUR COMPANY USES SINGLE ENG TAXI-IN PROCS IN WHICH THE L ENG IS SHUT DOWN WHILE TAXIING IN. ONCE IN THE GATE WITH CHOCKS IN, THE CREW IS DIRECTED TO START AUTOMATICALLY INITIATED SHUTDOWN FLOWS, PART OF WHICH DIRECTS THE CAPT TO SHUT DOWN THE R ENG. MY FLOW WAS SOMEHOW INTERRUPTED AND THE ENG WAS NOT SHUT DOWN. ALL FLOWS ARE BACKED BY WRITTEN CHKLISTS, BUT THE CHKLIST WAS NEVER PERFORMED. I BELIEVE BECAUSE OF THE WAY THE CHKLIST IS WRITTEN WE BOTH THOUGHT THE OTHER HAD DONE IT. ALL CHKLISTS INDICATE WHO WILL PERFORM THEM, EXCEPT THE SHUTDOWN FROM THE LINE. THIS LED BOTH PLTS TO BELIEVE THE OTHER WAS PERFORMING THE CHKLIST. COMPOUNDING THE PROB IS THE FACT THAT THE FROM-THE-LINE CHKLIST IS A SILENT CHKLIST, SO NEITHER PLT WAS EXPECTING TO HEAR ANYTHING. THE FINAL PROB IS THERE IS NO DIRECTION FROM THE FLT STANDARDS MANUAL AS TO WHOM WILL PERFORM THE SHUTDOWN CHKLIST.

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.