As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, RECEIVED EICAS ADVISORY "R FWD WINDOW". RAN QRH AND COMPLIED, MSG EXTINGUISHED. PERFORMED WINDOW HEAT CONTROL UNIT BITE. NO FAULTS AND NO EICAS MESSAGES AT THIS TIME. PERFORMED BITE PER AMM 30-41-01-861-001. OPS CHECK TESTED OK.