COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Fokker F28 Series Aeroplanes AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/F28/77 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section. AD/F28/77 Amdt 1 Rear Cargo Door and Aux. Structure Corrosion 6/2000 Applicability: F28 Mks. 1000 to 4000 serial numbers 11021 to 11241, 11991 and 11992. Requirement: Action in accordance with Fokker SB F28/52-111 dated 12 March 1994. Note: Netherlands AD BLA nr 1995-126(A) refers. Compliance: Inspect and modify within two years of the effective date of the initial issue of this Directive; thereafter inspect at intervals not exceeding three years, or 6000 hours time in service, whichever occurs first. This Amendment becomes effective on 15 June 2000. Background: Severe corrosion has been found inside the rear cargo door. This has been the result of spilled toilet fluids being absorbed by insulation blankets and providing a continuous corrosive environment. Amendment 1 is issued to re-specify the Applicability per the correction dated 31 March 2000 to the Netherlands AD. The original issue of this Airworthiness Directive became effective on 29 February 1996. Bernard Malcolm Hole Delegate of the Civil Aviation Safety Authority 5 May 2000 The above AD is notified in the Commonwealth of Australia Gazette on 17 May 2000.