COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 767 Series Aeroplanes AD/B767/38 Amdt 2 Engine Fire and Overheat Detection System 11/93 Applicability: All model 767 series aeroplanes fitted with Kidde engine fire and overheat detection systems as listed in Boeing SB 767-26-0037 Revision 3 dated 8 July 1993. Requirement: Modify the engine fire and overheat detection system in accordance with Boeing SB 767-26-0037 Revision 3 dated 8 July 1993. Note: FAA AD 90-05-05 Amendment 39-6516 refers. Compliance: Unless previously accomplished, prior to 31 March 1994. Background: This Directive is prompted by numerous instances of false fire and overheat warnings that have resulted in engine in-flight shutdowns and aircraft diversions. This condition, if not corrected, could result in unnecessary engine in-flight shutdowns and aircraft diversions that unduly jeopardise continued safe operation of the aircraft. Amendment 1 to this Directive was issued to reflect additional work required by Revision 2 of the Service Bulletin. Amendment 2 is issued following release of Revision 3 of the Service Bulletin, which requires additional work for some aircraft.