COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 737 Series Aeroplanes AD/B737/100 Aileron Control Cable Pulley Bracket 5/97 Applicability: Model 737-300 series aircraft, as listed in Boeing Service Bulletin 737-27-1154. Requirement: a. Perform a visual inspection to detect fatigue cracking, base trim, or upper flange over-trim of the pulley brackets, part number 65C25555-3, 65C5555-501, or 69- 73479-1, of the aileron control cables, in accordance with Boeing Service Bulletin 737-27-1154. b. If any cracking, base trim, or upper flange over-trim of the pulley brackets is detected, replace the pulley brackets with new pulley brackets, and replace the two existing button-head rivets with flush-head rivets; in accordance with Boeing Service Bulletin 737-27-1154. Note: FAA AD 97-03-14 Amdt 39-9919 refers. Compliance: Unless already accomplished, before 14 September 1998. This Airworthiness Directive becomes effective on 24 April 1997. Background: The FAA required actions specified in this Directive are in response to a review of the flight control systems on Model 737 series aircraft by the Critical Design Review team.