Document ID: chunk:federal_register_of_legislation:F2006B02709:body:0:p1
Version: federal_register_of_legislation:F2006B02709
Segment Type: other
Provision Reference: 
Character Range: 11–3222

AIRWORTHINESS DIRECTIVE

 For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (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 727 Series Aeroplanes

AD/B727/185 Hydraulic Accumulator End Cap Separation 9/2003

            Applicability: Boeing 727 series aeroplanes, Line Numbers (L/N) 1 to 1832 inclusive with hydraulic accumulators installed as referenced in Boeing Special Attention Service Bulletins (BSASB) referred to in the Requirements of this Directive.

 Requirement: Hydraulic Accumulators in "A" and "B" Systems:

               1. Inspect, in accordance with BSASB 727-29-0064 Revision 1, dated 3 May 2001, the hydraulic accumulators in the "A" and "B" hydraulic systems to determine if the part numbers (P/N) are Parker P/N 1356-603303.

2.         If hydraulic accumulators, in compliance with Requirement 1, are determined to be Parker P/N 1356-603303, replace with new or modified accumulators in accordance with BSASB 727-29-0064 Revision 1, dated 3 May 2001.

            Note 1: BSASB 727-29-0064 Revision 1, refers to Parker Service Bulletin 1356- 603303-29-60, dated 9 January 2001, as the appropriate source of service information for modification of the hydraulic accumulators that are subject to replacement as per BSASB 727-29-0064 Revision 1.

Hydraulic Accumulators in Landing Gear Brake System:

3.         Inspect, in accordance with BSASB 727-32-0410 Revision 2, dated 24 January 2002, the hydraulic accumulator installed in the landing gear brake system to determine if the P/N is 1356-603399, 3780078-104, BACA11E4S, BACA11E4SA, 60857-4-1, or BACA11E4 (vendor P/N 2660472-4 or 2660472M4).

4.         If any hydraulic accumulator, in compliance with Requirement 3, is determined to be P/N 1356-603399 or BACA11E4 (vendor P/N 2660472-4 or 2660472M4), replace existing accumulator clamps and mounting hardware with new, stronger accumulator clamps and mounting hardware, and replace the subject hydraulic accumulator with a new or modified accumulator in accordance with BSASB 727-32-0410 Revision 2, dated 24 January 2002.

            Note 2: BSASB 727-32-0410 Revision 2, refers to Parker Service Bulletins 1356-
            603399-29-61 and 2660472-29-63, both dated 12 December 2000, as the appropriate sources of service information for modification of the hydraulic accumulators that are subject to replacement per BSASB 727-32-0410 Revision 2.

5.         If any hydraulic accumulator is determined to be P/N 3780078-104, BACA11E4SA, or 60857-4-1, in compliance with Requirement 3, replace existing accumulator clamps and mounting hardware with new, stronger accumulator clamps and mounting hardware in accordance