Document ID: chunk:federal_register_of_legislation:F2006B02832:body:0:p1
Version: federal_register_of_legislation:F2006B02832
Segment Type: other
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Character Range: 20–3042

AIRWORTHINESS DIRECTIVE
 For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B737/131 Amdt 3 and issues the following 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/B737/131
 Amdt 4

 Electrical Power 11/2004

 Applicability: All Model 737-100, -200, -300, -400 and -500 series aeroplanes.

              Requirement: 1. For Model 737-100 and -200 series aeroplanes equipped with battery charger Boeing Part Number (P/N) 10-60701-1:

                  1. Replace the battery charger with a new or serviceable battery charger, Boeing P/N 10-60701-3, in accordance with Chapter 21-10-111 of the Boeing 737 Airplane Maintenance Manual (AMM), and

                  2. Replace the battery with a new or reconditioned battery in accordance with Chapter 24-31-11 of the Boeing 737 AMM.

              Incorporation of Boeing Alert Service Bulletin (ASB) 737-24A1136 dated 27 April 2000 or Revision 1 dated 24 January 2002 or Revision 2 dated 7 August 2003 is optional and allows the battery maintenance to be scheduled in accordance with the Boeing 737 Maintenance Planning Document (MPD).

2.        For Model 737-300, -400 and -500 series aeroplanes - Replace the battery with a new or reconditioned battery in accordance with Chapter 24-31-11 of the Boeing 737 AMM.

              Incorporation of ASB 737-24A1136 or Revision 1 or Revision 2 is optional and allows the battery maintenance to be scheduled in accordance with the 737 MPD.

3.        For all Model 737-100, -200, -300, -400 and -500 series aeroplanes - Perform a test to determine the condition of the Generator Control Unit (GCU) diode CR910 in accordance with Boeing Telex Message M-7200-99-01528 dated 5 March 1999.

                  1. If the diode fails the Requirement 3 test, replace the GCU with a new or serviceable GCU and the battery with a new or reconditioned battery. Repeat the Requirement 3 diode test until successful completion of the test is achieved.

                  2. Once the Requirement 3 diode test has been successfully completed, repeat the diode test.

              Incorporation of ASB 737-24A1136 or Revision 1 or Revision 2 is optional terminating action for the Requirement 3.b repetitive testing of the diodes.

4.        Battery chargers P/N 10-60701-1 may not be installed on any Model 737 series aeroplane as a replacement part.

5.        For Model 737-100 and -200 series aeroplanes equipped with battery charger Boeing P/N 10-60701-3 -