What was found
(CAN) CABIN CREW REPORTED UNSERVICEABLE READING LIGHT MOUNTED IN THE IR DOOR. INVESTIGATION REVEALED SIGNS OF OVERHEATING IN THE AREA OF THE POWER SUPPLY. A FLEET CHECK TURNED UP NO SUBSEQUENT FINDINGS, WATER INGRESS IS SUSPECTED AS CAUSING THE FAULT. PARTS SENT TO MANUFACTURER (AIRBUS) FOR FURTHER INVESTIGATION. CAUSE OF FAILURE WAS INSUFFICIENT SEMICOSIL COATING. UNITS PRODUCED AFTER 01/2000 HAVE HAD IMPROVEMENTS INTRODUCED TO PREVENT REOCCURENCE