Document ID: chunk:federal_register_of_legislation:F2017L01363:body:0:p2
Version: federal_register_of_legislation:F2017L01363
Segment Type: other
Provision Reference: 
Character Range: 6071–7579

this AD.
                                                                                                                                                                      This AD commences on 26 October 2017.
Background:                                                                                                                                                           Operators have reported corrosion forming on areas of the aircraft where black film thermal insulation blankets are being used. De Havilland's investigation found that the black film, which covers these insulation blankets, contains carbon. If condensation is present, corrosion may occur in places where the black film is in contact with any aluminium structure.
                                                                                                                                                                      Amendment 1 of this AD was issued in response to a revision of the Transport Canada AD which changed the applicability to align with the applicability of the latest revision of the mandated service bulletins.
                                                                                                                                                                      Amendment 2 of this AD is issued to correct two minor typographical errors in the serial number range of the last row of the Requirement Table.

Pieter van Dijk
Delegate of the Civil Aviation Safety Authority
16 October 2017