Narrative:

After takeoff; noticed a 10 KT difference between captain's and first officer's airspeed indicators. Captain's appeared to be the one that was reading incorrectly; as the standby read the same as the first officer's. I switched the air data source to captain's on 3 and the speeds matched. We wrote up the air data as at fault and continued on to las uneventfully. On arrival during the first officer walkaround he noticed that the pitot tube on the upper left side was bent up approximately 45 degrees. In suspect: that it was bent as the ground power cord was retracted at the gate in ord; just prior to departure; as we did not hit a bird or anything and the problem occurred right after takeoff.

Related reports:

Google
 

Original NASA ASRS Text

Title: TEN KNOT DIFFERENCE BETWEEN CAPT AND FO AIRSPEED INDICATORS IS TRACED TO BENT PITOT TUBE ON CAPT'S SYSTEM.

Narrative: AFTER TKOF; NOTICED A 10 KT DIFFERENCE BTWN CAPT'S AND FO'S AIRSPD INDICATORS. CAPT'S APPEARED TO BE THE ONE THAT WAS READING INCORRECTLY; AS THE STANDBY READ THE SAME AS THE FO'S. I SWITCHED THE AIR DATA SOURCE TO CAPT'S ON 3 AND THE SPDS MATCHED. WE WROTE UP THE AIR DATA AS AT FAULT AND CONTINUED ON TO LAS UNEVENTFULLY. ON ARR DURING THE FO WALKAROUND HE NOTICED THAT THE PITOT TUBE ON THE UPPER L SIDE WAS BENT UP APPROX 45 DEGS. IN SUSPECT: THAT IT WAS BENT AS THE GND PWR CORD WAS RETRACTED AT THE GATE IN ORD; JUST PRIOR TO DEP; AS WE DID NOT HIT A BIRD OR ANYTHING AND THE PROB OCCURRED RIGHT AFTER TKOF.

Data retrieved from NASA's ASRS site as of May 2009 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.