Narrative:

First officer was flying the ILS to runway 31C. Approach turned us on localizer over OM. First officer was high and fast. I was preoccupied with helping him get slowed down and completely forgot to switch over to tower. Landing without clearance and realized mistake after turning off of runway. We switched to ground control and received taxi clearance to gate. Nothing was mentioned regarding this by ground control or us. This was 4TH leg of a 5 leg day, preceded by reduced rest the night before. Long delays all day due to ice storm in midwest. Fatigue may have contributed to mistake. To my knowledge, nobody has said anything about this. I am not sure if tower ever noticed.

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Original NASA ASRS Text

Title: MLG CREW LWOC AT MDW.

Narrative: FO WAS FLYING THE ILS TO RWY 31C. APCH TURNED US ON LOC OVER OM. FO WAS HIGH AND FAST. I WAS PREOCCUPIED WITH HELPING HIM GET SLOWED DOWN AND COMPLETELY FORGOT TO SWITCH OVER TO TWR. LWOC AND REALIZED MISTAKE AFTER TURNING OFF OF RWY. WE SWITCHED TO GND CTL AND RECEIVED TAXI CLRNC TO GATE. NOTHING WAS MENTIONED REGARDING THIS BY GND CTL OR US. THIS WAS 4TH LEG OF A 5 LEG DAY, PRECEDED BY REDUCED REST THE NIGHT BEFORE. LONG DELAYS ALL DAY DUE TO ICE STORM IN MIDWEST. FATIGUE MAY HAVE CONTRIBUTED TO MISTAKE. TO MY KNOWLEDGE, NOBODY HAS SAID ANYTHING ABOUT THIS. I AM NOT SURE IF TWR EVER NOTICED.

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.