COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 19, 23 and 24 Series Aeroplanes AD/BEECH 23/46 Amdt 1 Flight Controls 3/90 Applicability: Beechcraft A23-19, 19A, M19A and B19 with S/Nos MB-1 through MB-520. B19 Sport 150 with S/Nos MB-521 through MB-813, MB-815 and MB-816. 23, A23, A23A, B23 and C23 with S/Nos M-1 through M-1361. C23 Sundowner 180 with S/Nos M-1362 through M-1874, and M-1876 through M- 1879. A23-24 and A24 with S/Nos MA-1 through MA-368. A24R with S/Nos MC-2 through MC-95. A24R and B24R Sierra 200 with S/Nos MC-96 through MC-310, MC-312 through MC-448, MC-450 and MC-451. Requirement: Action in accordance with Beechcraft Mandatory SB 2198 Rev 1, or equivalent approved modification. Compliance: Within 100 hours time in service after 10 August 1989, or at next scheduled inspection for Maintenance Release after 10 August 1989 whichever occurs later. Background: The manufacturer considers this Requirement mandatory enabling examination and lubrication of rod ends during routine inspections, reducing the possibility of failure and loss of aileron control. Amendment 1 references Revision 1 to the Requirement document which clarifies the modification for aircraft with existing 1 3/8" inspection hole.