As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS-YHZ - FLT 4672, DURING CLIMB, FIRST OFFICERS AIRSPEED INDICATOR STARTED TO INDICATE 290 KNOTS WITH OVERSPEED WARNING. DURING DESCENT INDICATOR WENT TO 0 KNOTS THEN BACK TO NORMAL. AIRCRAFT DIVERTED TO BGR AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE FIRST OFFICERS AIRSPEED INDICATOR, PERFORMED THE REQUIRED CHECKS AND RETURNED THE AIRCRAFT TO SERVICE. (M)