As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT SIDE WINDOW OVERHEAT ILLUMINATED. PERFORMED QRH AND WINDOW OVERHEAT EXTINGUISHED. GROUNDED - YES. REMOVED AND REPLACED R2 WINDOW ASSY PER B737-900 AMM 56-12-11/401. MOVED TAPS FROM 15 TO 16 (2 TO 1) ON TB5014 REF B737-900 WDM 30-41-11 PG3. WINDOW HEAT OPS TESTED. NO DEFECTS NOTED. A/C OK FOR SERVICE.