COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Electrical Equipment AD/ELECT/43 J.E.T. Emergency Power Supply - Inspection/Modification Applicability: All J.E.T. power supplies. Model PS835 series. Requirement: 1. If the installation incorporates a panel located battery test switch, install a temporary placard near the test switch which reads as follows: "To test emerg pwr supply 1. Disregard emerg pwr sw test position. 2. A/C master/batt sw - off. 3. Emerg pwr sw - on. 4. Ck operation of accessory/instr". 2. Modify as required by JET Alert SB A-SB501-1228-7. FAA AD 82-21-04 Amendment 39-4475 refers. Compliance: For Para. 1 - Within 100 hours time in service after 31 March 1983. For Para. 2 - Within 200 hours time in service after 31 March 1983. Background: To prevent false indication that emergency power is available. 3/83