Narrative:

During takeoff, the first officer's airspeed indication was 20 KIAS slower than the captain's and the standby indication. I selected the #1 air data computer (air data computer) and then corrected my airspeed indication. The captain entered the write-up and debriefed maintenance at ZZZ1. Maintenance found debris in the first officer's pitot tube.

Google
 

Original NASA ASRS Text

Title: AN AIRBUS 300 ON TKOF CLB AT 500 FT NOTED FO'S AIRSPD INDICATION 20 KTS LOWER THAN CAPT'S AND STANDBY INDICATION. SWITCHED TO #1 AIR DATA COMPUTER AND CORRECTED. MAINT FOUND DEBRIS IN #2 PITOT TUBE.

Narrative: DURING TKOF, THE FO'S AIRSPD INDICATION WAS 20 KIAS SLOWER THAN THE CAPT'S AND THE STANDBY INDICATION. I SELECTED THE #1 ADC (AIR DATA COMPUTER) AND THEN CORRECTED MY AIRSPD INDICATION. THE CAPT ENTERED THE WRITE-UP AND DEBRIEFED MAINT AT ZZZ1. MAINT FOUND DEBRIS IN THE FO'S PITOT TUBE.

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.