COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Fokker F27 Series Aeroplanes AD/F27/126 Wing Attachment Fitting Bolts 12/91 Applicability: Model F27 S/No 10102 thru 10259, if in pre-SB F27/53-60 (Part II) - config. Requirement: Action in accordance with the Technical Requirements of RLD AD 91-067. Note: Fokker SB F27/53-115 refers. Compliance: As specified in the Requirement Document with a revised effective date of 12 December 1991 for Australian registered aircraft. Background: Report of loose or sheared bolts and screws which connect fuselage main frame STA 7961 and STA 9439.5 to the outboard wing attachment fittings. The effective date required by the RLD is extended by approximately four months.