As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6330 - IAD-PIT - DURING CLIMB, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO LEFT BETA WARNING LIGHT ILLUMINATED. AIRCRAFT LANDED AND RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED ENGINE AND INSPECTED BETA SWITCH, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)