As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FO SIDE WINDOW CRACKED. WHILE IN CRUISE, THE FO SIDE WINDOW SHOWED SIGNS OF CRACKING. AN EMERGENCY WAS DECLARED AND THE FLIGHT DESCENDED TO A LOWER ALTITUDE. FLIGHT CONTINUED ON AND LANDED IN PHL SAFELY. TRUCKS WERE ROLLED AS A PRECAUTION BUT WERE CALLED OFF WHEN THERE WAS NO ISSUE ON LANDING. R&R RIGHT HAND SIDE WINDOW. OPS CHECK AND PRESSURE CHECK GOOD.