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 23/44 Stabilator Hinge Fastener Shearing 4/87 DM Applicability: Models: A23-19, 19A, M19A and B19 S/N MB-1 to MB-520 B19 Sport 150 S/N MB-521 to MB-905 23, A23, A23A, B23, C23 S/N M-1 to M-1361 C23 Sundowner 180 S/N M-1362 to M-2156, and M-2158 to M-2392 A23-24, A24 S/N MA-1 to MA-368 A24R S/N MC-2 to MC-95 A24R, B24R, C24R, Sierra 200 S/N MC-96 to MC-795 Requirement: 1. Visually inspect the fasteners securing the stabilator hinge assemblies to the fuselage for looseness or failure in accordance with the requirements of the "Accomplishment Instructions" of Beech SB No 2182. 2. If ANY fasteners are found loose or failed when conducting the inspection required in para 1, replace ALL fasteners securing both left and right hinge assemblies to the fuselage in accordance with Beech SB No 2182 prior to further flight. Note: FAA AD 87-02-08 refers. Compliance: Prior to further flight after 19 February 1987 and thereafter every 100 hours time in service for aircraft registered in the normal and utility category, and every 25 hours time in service for aircraft registered in the acrobatic category. Background: There have been reports which show the fasteners used to secure the stabilator hinge assemblies to the fuselage were found to be in a sheared condition. In one case all but one fastener was found to have failed.