COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 737 Series Aeroplanes AD/B737/67 Electrical Power Distribution P6 Load Control Centre Panel 7/92 Applicability: Model 737 series aeroplanes listed in Boeing Service Bulletins 737-24-1077 Revision 2 dated 25 July 1991 and 737-24-1084 Revision 1 dated 21 March 1991. Requirement: Action in accordance with the technical requirements of FAA AD 92-07-10 Amendment 39-8206. Note: Boeing Service Bulletins 737-24-1077 Revision 2 dated 25 July 1991 and 737- 24-1084 Revision 1 dated 21 March 1991 refer. Compliance: Prior to 25 November 1992. Background: Reports of arcing and smoke emanating from a circuit breaker panel have been received. Battery bus wiring has also been found to be undersized. This AD requires the installation of additional protection of wire bundles and the replacement of undersized wiring.