What was found
(CAN) DURING THE 100 HR INSPECTION THE MAINTENANCE PERSONAL WENT TO TEST THE ELT FOR PROPER FUNCTION. THE REMOTE ELT SWITCH WAS ATTEMPTED TO BE ACTIVATED AND FOUND TO BE EXTREMELY STIFF. AN ABNORMAL AMOUNT OF PRESSURE WAS APPLIED AND THE SWITCH FINALLY MOVED AND FAILED TO ACTIVATE THE ELT. THE PROCESS WAS REPEATED 2 MORE TIMES BEFORE THE ELT ACTIVATED. THE SWITCH WAS THEN MOVED TO THE "ARM" POSITION, THIS SHOULD TURN THE ELT OFF, THE ELT FAILED TO TURN OFF AND HAD TO BE MANUALLY TURNED OFF AT THE UNIT ITSELF. SHOULD THIS HAVE OCCURRED DURING AN ACTUAL EMERGENCY THEIR IS A HIGH PROBABILITY THAT THE ELT WOULD NOT HAVE BEEN ABLE TO BE MANUALLY ACTIVATED PRIOR TO THE ACFT COMING TO REST ON THE GROUND AND BEING ACTIVATED AT THE UNIT ITSELF.