As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - FLT 588 - EN ROUTE SDQ/JFK DURING CRUISE, CABIN WINDOW OUTER PANE AT PAX SEAT 12A CRACKED ALONG EDGE OF FRAME. AIRCRAFT DIVERTED TO MIA AND LANDED WITHOUT INCIDENT. REPLACED OUTER WINDOW PANE AND SEAL AT PAX SEAT 12A. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)