What was found
ELT BATTERIES FOUND LEAKING AT ANNUAL INSPECTION. ELT IS MODEL E-01 WHICH USES 8 EA. MN1300 (D) CELL BATTERIES. THE BATTERIES WERE DATED MAR 2010 (DATE OF INSTALLATION UNKNOWN), AND THE ELT WAS LABELED AND MAINTENANCE ENTRIES NOTED FOR (ELT BATTERY DUE JUNE 2005). BATTERY LEAKAGE HAD CONTAMINATED THE ELT CASE AND CAUSED CORROSION OF THE MOUNTING TRAY. THIS WAS THIRD INSTANCE OF DISCOVERING LEAKING BATTERIES IN AN ELT WHERE THE SHELF LIFE DATE PRINTED ON THE BATTERY WAS STILL MANY YEARS INTO THE FUTURE.