What was found
EN ROUTE FROM CLT TO ORD, CREW REPORTED THE CAPTAIN'S SLIDING WINDOW CRACKED IN FLIGHT AT FL360. FLIGHT RETURNED TO FIELD & LANDED WITHOUT INCIDENT. R & R THE CAPTAIN'S SLIDING WINDOW PANEL IAW JOB CARD 26L21156001. AS PRECAUTIONARY, R & R LT WINDOW HEAT COMPUTER IAW AMM 30-42-34, CHECKED GOOD.