As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEBRIEFED CREW UPON ARRIVAL, CREW STATED AT 31K FEET THEY SAW ARCING ON THE R2 WINDOW WITH WINDOW HEAT MSG.THEN SAW A CRACK ON THE LOWER REAR CORNER OF THE WINDOW. R&R R2 WINDOW IAW 56-11-02 UP TO STEP 15 WINDOW REQUIRES ADJUSTMENT AND LEAK CHECK ALL HARDWARE AND PANELS ARE LOCATED IN COCPIT ON THE F/O SEAT. COMPLETED R2 WINDOW INSTALL ADJUSTMENT AND LEAK CHECK. OPS CK NORMAL AT THIS TIME AMM REFS 56-11-02-404-026 & 56-11-02-825-122.