As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6248 - IAD-BGM - DURING TAXI, AIRCRAFT RETURNED TO GATE DUE TO CAPTAINS VSI SCREEN WENT BLANK. AIRCRAFT RETURNED TO GATE AND WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED VIS INDICATOR, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)