COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES AMD Falcon 50 and 900 Series Aeroplanes AD/AMD 50/14 Amdt 1 Horizontal Stabiliser Hinge 9/99 Applicability: Mystere Falcon 50 aircraft with serial numbers 242 through 262, Mystere Falcon 900 aircraft with serial numbers 139 through 169, and Falcon 900 EX aircraft with serial numbers 1 through 21. Requirement: 1. Incorporate the following temporary changes and revisions, as applicable: For the MF 50: Aircraft Flight Manual, TC 46 (TC 12 for S/N 251, 253 on). Maintenance Manual Chapter 5-40, Revision 10. For the MF 900: Aircraft Flight Manual, TC 69. Maintenance Manual Chapter 5-40, Revision 9. For the F 900 EX: Aircraft Flight Manual, TC 14. Maintenance Manual Chapter 5-40, Revision 2. 2. Perform the check specified in Chapter 5 of the Maintenance Manual at the revision status referenced in Requirement 1 of this Directive, as applicable. 3. Action in accordance with Dassault Aviation Service Bulletin F 50-274, F 900- 203, or F 900 EX-37, as applicable. Note: DGAC AD 1997-370-020 (B) R2 refers. Compliance: 1. Unless already accomplished, before 23 May 1998. 2. Before 27 February 2004 or supplementary 3750 flight cycles, whichever occurs first. 3. Before 6 years and 2 Months or 3750 flight cycles since new, whichever occurs first. The compliance remains unchanged for Requirement 1 of this Directive. This Amendment becomes effective on 9 September 1999. Background: A check performed on a test aircraft revealed deformation of the horizontal stabiliser attachment and hinge outer rings which may create excessive play in the hinge. COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Amendment 1 is issued in response to a new DGAC AD which deletes the mandatory inspection to be performed after a stall as required in Maintenance Manual Chapter 5.50 The original issue of this Airworthiness Directive became effective on 23 April 1998.