Document ID: chunk:federal_register_of_legislation:F2011L01782:body:0
Version: federal_register_of_legislation:F2011L01782
Segment Type: other
Provision Reference: 
Character Range: 0–3281

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B737/52 Amdt 2 and issues the following AD under subregulation 39.001(1) of CASR 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.

Boeing 737 Series Aeroplanes
AD/B737/52 Amdt 3  Corrosion Prevention and  18/2011
                   Control Program (CPCP)

Applicability:  All Model 737 series aeroplanes; unless the system of maintenance includes an alternative method of compliance approved by CASA.
Requirement:    Action in accordance with the technical requirements of FAA AD 90-25-01 Amdt
                39-6789.

                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 CASA under cover of a single SDR.  Level 3 corrosion shall be reported by SDR.

                Note 1:  Boeing document No. D6-38528 at latest revision is associated with FAA AD 90-25-01.

                Note 2:  Boeing 737-300/400/500 Maintenance Planning Data Document No D6-38278 Section 10 at latest revision is an approved Alternative Method Of Compliance (AMOC) to this AD.

                Note3:  FAA Letter 120S-09-687, dated February 04, 2010 is associated with FAA AD 90-25-01.

                Note 4:  Boeing 737-600/-700/-700C/-800/-900/-900ER CPCP program is included in the Maintenance Review Board Report and the Maintenance Planning Data Documents.  As such an AMOC to FAA AD 90-25-01 has been approved under the conditions of FAA Letter 120S-09-687, and is approved as an AMOC to this AD.

                Note 5 :  References made in the FAA AD text to the following:

                Administrator,
                FAA,
                FAA Principal Inspector (PI), or
                Manager Seattle Certification Office (ACO)

                shall be read as Civil Aviation Safety Authority Office.
Compliance:     As specified in the Requirement Document.

             This Amendment becomes effective on 5 September 2011.
Background:  The Country of Origin Airworthiness Authority requires implementation of a corrosion prevention and control program to prevent the degradation of the structural capabilities of the affected aircraft.

             Amendment 1 was raised to specify the reporting requirements when corrosion is found as a result of the CPCP.

             Amendment 2 was issued to introduce a method of compliance other than the Country of Origin AD, to address current "in production" aircraft.

             Amendment 3 is issued to introduce a method of compliance for 737-600/-700/
             -700C/-800/-900/-900ER aircraft.

Mike Higgins
Delegate of the Civil Aviation Safety Authority

26 August 2011