Narrative:

Very short taxi from our gate at ord to runway 32R. I was rushing to get the second engine started and complete all checklists. We were switched to tower and cleared for takeoff almost immediately after starting taxi. The captain accomplished several items normally done by the first officer in order to expedite the checklists. I read the before takeoff checklist and also did a short flow pattern to make sure all the important items were done. We took off and departure said he wasn't receiving our transponder. It was off. I missed it on the checklist. Next time I'll just ask the captain to slow down a min and be more methodical in accomplishing the checklist. It was the last leg of a 4 day trip and we were anxious to get home, and tired because of an early departure from hon that morning, too. Need to watch that 'get homeitis.'

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Original NASA ASRS Text

Title: NON ADHERENCE TO ATC INSTRUCTION. ACR MLG DEPARTS ORD WITHOUT XPONDER IN OP.

Narrative: VERY SHORT TAXI FROM OUR GATE AT ORD TO RWY 32R. I WAS RUSHING TO GET THE SECOND ENG STARTED AND COMPLETE ALL CHKLISTS. WE WERE SWITCHED TO TWR AND CLRED FOR TKOF ALMOST IMMEDIATELY AFTER STARTING TAXI. THE CAPT ACCOMPLISHED SEVERAL ITEMS NORMALLY DONE BY THE FO IN ORDER TO EXPEDITE THE CHKLISTS. I READ THE BEFORE TKOF CHKLIST AND ALSO DID A SHORT FLOW PATTERN TO MAKE SURE ALL THE IMPORTANT ITEMS WERE DONE. WE TOOK OFF AND DEP SAID HE WASN'T RECEIVING OUR XPONDER. IT WAS OFF. I MISSED IT ON THE CHKLIST. NEXT TIME I'LL JUST ASK THE CAPT TO SLOW DOWN A MIN AND BE MORE METHODICAL IN ACCOMPLISHING THE CHKLIST. IT WAS THE LAST LEG OF A 4 DAY TRIP AND WE WERE ANXIOUS TO GET HOME, AND TIRED BECAUSE OF AN EARLY DEP FROM HON THAT MORNING, TOO. NEED TO WATCH THAT 'GET HOMEITIS.'

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.