As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TWO HOURS OF FLT SMOKE WAS OBSERVED COMING FROM RT SIDE COCKPIT. AOM PROCEDURE COMPLIED W/. SMOKE SOURCE TRACED TO LWR AREA OF NUMBER 1 RT WINDOW. WINDOW HEAT 1R SWITCHED OFF, SMOKE STOPPED. AREA OF GREASE WAS OBSERVED ALONG LWR PART OF WINDOW. REMOVED AND REPLACED 1R WINDOW HEAT CONTROL UNIT AS PER MM 30-41-01. OPS CHECKS NORMAL.