Document ID: chunk:federal_register_of_legislation:F2009L02774:body:0:p3
Version: federal_register_of_legislation:F2009L02774
Segment Type: other
Provision Reference: 
Character Range: 5609–8770

action is required and compliance with this AD is complete.

        b. Perform a fluorescent penetrant inspection of the ADG strut and replace the ADG, as necessary, in accordance with paragraphs 2.A., 2.C. and 2.D. of the Accomplishment Instructions in Bombardier Alert SB 604-24-017, Revision 1, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.

        If the ADG is replaced by an ADG with P/N 604-90800-23 (Hamilton Sundstrand P/N 1711405), no further action is required and compliance with this AD is complete.

   Note 6:  Requirement 4 is required, after an unscheduled in-flight ADG deployment, for each ADG that is specified in Requirement 1.b.iii.A. of this AD.

   Note 7:  The visual inspection specified in Requirement 4a above is not required if the fluorescent penetrant inspection, specified in Requirement 4b. is performed before further flight.

                5. Inspection after an Unscheduled On-Ground ADG Deployment:

                Visually inspect the ADG strut and replace the ADG, as necessary, in accordance with paragraphs 2.A., 2.B. and 2.D. of the Accomplishment Instructions in Bombardier Alert SB 604-24-017, Revision 1, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.

                If the ADG is replaced by an ADG with P/N 604-90800-23 (Hamilton Sundstrand P/N 1711405), no further action is required and compliance with this AD is complete.

             Note 8:  Requirement 5 is required, after an unscheduled on-ground ADG deployment, for each ADG that is specified in Requirement 1.b.iii.A. of this AD.

                6. Re-Identification:

                Re-identify the ADG in accordance with the Accomplishment Instructions in Bombardier SB-604-24-019, dated 1 October 2007, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.

                Re-identification, conducted in accordance with Revision 2, dated 14 September 2007, Revision 3, dated 12 February 2008 or Revision 4, dated 30 April 2009 of Hamilton Sundstrand SB-ERPS10AG-24-4, also meets the intent of Requirement 6 of this AD.

                Following re-identification, no further action is required and compliance with this AD is complete.

             Note 9:  Requirement 6 is only applicable if required by Requirement 1.b.i, 1.b.ii, or 1.b.iii.B. of this AD.  The strut wall thickness of the ADGs specified in these Requirements is not below specification.

                7. Replacement Parts:

                Do not install a replacement ADG with P/N 604-90800-1, -17 or -19 (Hamilton Sundstrand P/N in the 761339 series) on any aircraft if the S/N of the ADG is in the range 0101 through 1999 strut and the S/N of the generator housing assembly is in the range 0001 through 2503.

                However, it is permitted to install one of the above-specified ADGs back onto the same aircraft if it has been removed for non-related purposes, such as for maintenance or to gain access to other components, etc.

             Note 10:  The CL-604 Illustrated Parts Catalog also specifies that, for an