As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6250 - ABE-IAD - ABORTED TAKEOFF DUE TO NR 1 AIRSPEED INDICATOR FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED NR 1 PITOT STATIC LINE OF WATER, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)