Document ID: chunk:federal_register_of_legislation:F2008L00383:body:0:p2
Version: federal_register_of_legislation:F2008L00383
Segment Type: other
Provision Reference: 
Character Range: 2883–5531

inclusive)
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             0134 to 0167                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         0440 to 0456  0471 to 0590  0747 to 1005
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             Note 3:  Transport Canada AD CF-2008-09 refers.
Compliance:  For Requirement 1 - Within 12 months after the effective date of this Directive.
             For Requirement 2 - As of the effective date of this Directive.
             This Airworthiness Directive becomes effective on 21 February 2008.
Background:  Following in-flight test deployments, several ADGs failed to come on-line.  Investigation revealed that, as a result of a wiring anomaly that had not been detected during ADG manufacture, a short circuit was possible between certain internal wires and their metallic over-braided shields, which could result in the ADG not providing power when deployed.  This Directive mandates checking of the ADG and modification of the ADG internal wiring, if required.  It also prohibits future installation of unmodified ADGs.

David Punshon
Delegate of the Civil Aviation Safety Authority

13 February 2008