COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Cessna 560 (Citation V) Series Aeroplanes AD/CESSNA 560/3 Outflow Safety Valve 5/96 Applicability: All Cessna 560 series aircraft. Requirement: Unless previously carried out, action in accordance with Allied Signal Service Bulletin 103576-21-4055. Note: FAA AD 95-25-10 Amdt 39-9456 refers. Compliance: Within 200 hours time in service from 25 April 1996 or prior to 31 July 1996, whichever occurs first. Background: The manufacturer has advised that cracking has been found in two valve poppets of a particular batch. This cracking may cause failure of the outflow safety valve which could result in rapid decompression of the aircraft.