COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Electrical Equipment AD/ELECT/37 Amdt 2 JET Electronics and Technology Inc. Standby Power Supply - Modification 12/85 Applicability: All J.E.T. PS-823 Models. Requirement: If the modification number listed below has been marked off then no further action is required in this part. JET Part No Model Modification No 501-1075-01 PS-823A 18 501-1975-02 PS-823B 17 501-1075-03 PS-823C 15 501-1075-04 PS-823D 14 501-1075-05 PS-823A/T 21 501-1075-06 PS-823B/T 19 501-1075-07 PS-823C/T 17 501-1075-07 PS-823D/T 16 If the applicable modification number has not been marked off, install modifications in accordance with JET SB No. SB501-1075-16F. Compliance: Within 100 hours time in service after 28 February 1981. Background: Part 2 of this Directive is cancelled following reassessment after discussion with manufacturer, JET, who advised of factors not available at time of issue of Amendment 1.