As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6154 - IAD-BOS - AN UNSCHEDULED LANDING DUE TO LEFT ENGINE BIRD STRIKE INGESTION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED REMOVED AND REPLACED ENGINE, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)