COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 727 Series Aeroplanes AD/B727/128 Amdt 1 Corrosion Prevention and Control Program 3/92 Applicability: All model 727. Requirement: Action in accordance with technical requirements of FAA AD 90-25-03 Amdt 39- 6787. Note 1: Boeing document No. D6-54929 Rev A refers. Note 2: References made in the FAA AD text to the following; Administrator, FAA, FAA Principal Inspector (PI), or Manager Seattle Aircraft Certification Office (ACO), shall be read as Civil Aviation Authority District (Airport) Office. Note 3: Notwithstanding CAR 51B, corrosion classified as level 1 need not be reported. Level 2 corrosion may be consolidated with a sixty day report of corrective action, and submitted to the Authority District (Airport) Office under cover of a single MDR. Level 3 corrosion shall be reported by individual MDR. Compliance: As specified in the Requirement Document. The compliance of the previous issue of this Directive is as stated in this issue. This amendment is effective from 6 March 1992. Background: Country of Origin AD, implementation of a corrosion prevention and control program to prevent the degradation of the structural capabilities of the affected aircraft. Amendment 1 is raised to introduce a note which specifies the reporting requirements when corrosion is found as a result of the CPCP.