What was found
DURING TAKEOFF ROLL IT WAS NOTED THAT THERE WAS NO AIRSPEED INDICATION ON THE CAPTAINS SIDE. THE TAKEOFF WAS ABORTED WITH LIGHT BRAKING. ACFT RETURNED TO THE BLOCKS WITHOUT INCIDENT. POST FLIGHT INSPECTION WAS PERFORMED NOTING THAT THE CAPTAINS PITOT TUBE WAS OBSTRUCTED WITH DEBRIS. THE DEBRIS WAS REMOVED, OPS CHECK WAS PERFORMED WITH NO DEFECTS. ACFT WAS RETURNED TO SERVICE.