What was found
DURING DESCENT, HEARD A LOUD POP FROM THE RT FLIGHT DECK WINDOW. NEXT, RECEIVED A RT WINDOW HEAT CAUTION MESSAGE. FLIGHT DECK FILLED WITH AN ACRID BURNING ODOR, NO SMOKE WAS VISIBLE. ODOR DISSIPATED RAPIDLY. SUSPECT THAT THE RT WINDOW FAILED. (FLIGHT 3812) R & R RT SIDE WINDOW TEMPERATURE CONTROLLER IAW AMM 30-41-06. NO FIX. R & R RT SIDE WINDOW IAW AMM 56-12-01 & MIP 56-220-1000. LEAK CHECKED GOOD. PERFORMED OPS CHECK OF RT WINDOW TEMPERATURE CONTROLLER IAW AMM 30-41-06. OPS CHECKED GOOD. NO EVIDENCE OF LIGHTNING STRIKE NOTED. REFERENCE AML 639933 FOR MAINTENANCE PERFORMED AND PARTS INFORMATION OF REMOVAL/REPLACEMENT OF THE RT SIDE WINDOW TEMPERATURE CONTROLLER.