As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT - AT ROTATION CREW REPORTED LOUD BANG AND VIBRATION FROM NUMBER TWO ENGINE DUE TO BIRDSTRIKE. RETURNED TO SJU AND LANDED WITHOUT INCIDENT. REPLACED NUMBER TWO ENGINE ON 21NOV AT JFK DUE TO BLADE AND FAN CASE DAMAGE. SYSTEM GROUND CHECKED NORMAL OPERATION.