Narrative:

We were on a scheduled flight to cak. Halfway across lake michigan the captain noticed the aircraft logbook missing from the aircraft library. It turned out that while the captain and I were preparing for gate departure, maintenance personnel had come out to the aircraft and removed the logbook without our realizing it. I was involved with getting clearance and preparing the manifest. We reported the situation to dispatch and were told to return to ord to retrieve it. We did so and then continued to cak. Air carrier is adjusting our procedures for logbook removal so this won't happen again.

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Original NASA ASRS Text

Title: BATP CREW LEFT WITHOUT ACFT LOGBOOK.

Narrative: WE WERE ON A SCHEDULED FLT TO CAK. HALFWAY ACROSS LAKE MICHIGAN THE CAPT NOTICED THE ACFT LOGBOOK MISSING FROM THE ACFT LIBRARY. IT TURNED OUT THAT WHILE THE CAPT AND I WERE PREPARING FOR GATE DEP, MAINT PERSONNEL HAD COME OUT TO THE ACFT AND REMOVED THE LOGBOOK WITHOUT OUR REALIZING IT. I WAS INVOLVED WITH GETTING CLRNC AND PREPARING THE MANIFEST. WE RPTED THE SIT TO DISPATCH AND WERE TOLD TO RETURN TO ORD TO RETRIEVE IT. WE DID SO AND THEN CONTINUED TO CAK. ACR IS ADJUSTING OUR PROCS FOR LOGBOOK REMOVAL SO THIS WON'T HAPPEN AGAIN.

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.