AD/B737/215 - Hydraulic Accumulator End Cap Separation (Cth)

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 737 Series Aeroplanes

AD/B737/215 Hydraulic Accumulator End Cap Separation 9/2003

Applicability: Boeing 737-100, -200 and -200C series aeroplanes, L/N 1 to 1033 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 Landing Gear Brake System:

1. Inspect, in accordance with BSASB 737-32-1334 Revision 1, dated 1 March 2001, the hydraulic accumulators in the landing gear brake system to determine if the part number (P/N) is BACA11E2 (vendor P/N 2660472-2 or 2660472M2).

2. If any hydraulic accumulator is determined to be P/N BACA11E2 (vendor P/N 2660472-2 or 2660472M2), in compliance with Requirement 1, replace the subject hydraulic accumulator with a new or modified accumulator in accordance with BSASB 737-32-1334 Revision 1, dated 1 March 2001.

Note 1: BSASB 737-32-1334 Revision 1, refers to Parker Service Bulletin 2660472- 29-63, dated 12 December 2000, as the appropriate source of service information for modification of the hydraulic accumulators that are subject to replacement per BSASB 737-32-1334 Revision 1.