Document ID: chunk:federal_register_of_legislation:F2006B09156:body:0:p2
Version: federal_register_of_legislation:F2006B09156
Segment Type: other
Provision Reference: 
Character Range: 3009–4680

specified in paragraph
           4.0 of Part 3 of the Manual.

           Corrosion level determinations are to be based on the definitions contained in Part 1 of the Manual.

           Corrosion classified as Level 1 need not be reported.

           Level 2 corrosion may be consolidated with a quarterly 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 MDR.

           Note: Transport Canada AD CF-94-12R1 refers.

 Compliance:   1. Prior to 31 January 1995.

           2. Commencing 1 February 1995.

           The compliance of the original issue of this Directive remains unchanged. This Amendment becomes effective on 30 December 1999.
 Background:   As aircraft become older, they are more likely to exhibit indications of corrosion.
           Transport Canada Aviation, in conjunction with other airworthiness authorities, has committed itself to ensuring that additional maintenance programs for older aircraft are developed and implemented to minimise and control corrosive deterioration that could jeopardise airworthiness.

           Amendment 1 is issued in response to revision of the related Transport Canada AD which introduces Revision 1 of the CPC Manual which deletes the requirement for repetitive inspections after initial compliance. Transport Canada AD CF-99-11 (AD/DHC-6/72) now provides for the requirement to perform the inspections a second time, but on a more flexible schedule than required by the original issue of this Directive.

           The original issue of this Directive became effective on 8 December 1994.