Document ID: chunk:federal_register_of_legislation:F2011L01847:body:0:p1
Version: federal_register_of_legislation:F2011L01847
Segment Type: other
Provision Reference: 
Character Range: 0–3000

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B737/202 Amdt 1 and issues the following AD under subregulation 39.001(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/B737/202 Amdt 2  Centre Fuel Tank Limitations  18/2011

Applicability:  Model 737-600, -700, -700C, -800, and -900 series aeroplanes with line numbers prior to 1494.
Requirement:       1. If not previously accomplished in accordance with AD/B737/202 original issue or AD/B737/202 Amdt 1:
                   Revise the Limitations Section of the Aircraft Flight Manual (AFM) to include the following (this may be accomplished by inserting a copy of this Directive into the AFM):
                CERTIFICATE LIMITATIONS

                     The centre tank fuel pumps must be OFF for takeoff if centre tank fuel is less than 5,000 pounds (2,300 kilograms) with the aeroplane readied for initial taxi.

                     Both centre tank fuel pump switches must be selected OFF when centre tank fuel quantity reaches approximately 1,000 pounds (450-500 kilograms) during climb and cruise or 3,000 pounds (1,400 kilograms) during descent and landing.  The fuel pumps must be positioned OFF at the first indication of fuel pump low pressure.

                     The centre tank fuel quantity indication system must be operative to dispatch with centre tank mission fuel.
                Note

                        The CONFIG indicator will annunciate when centre tank fuel exceeds 1,600 pounds (726 kilograms) and the centre tank fuel pump switches are OFF.  Do not accomplish the CONFIG non-normal procedure prior to or during takeoff with less than 5,000 pounds (2,300 kilograms) of centre tank fuel or during descent and landing with less than 3,000 pounds (1,400 kilograms) of centre tank fuel.

   Note

           In a low fuel situation, both centre tank pumps may be selected ON and all centre tank fuel may be used.
        If the main tanks are not full, the zero fuel gross weight of the aeroplane plus the weight of centre tank fuel may exceed the maximum zero fuel gross weight by up to 5,000 pounds (2,300 kilograms) for takeoff, climb and cruise and up to 3,000 pounds (1,400 kilograms) for descent and landing, provided that the effects of balance (CG) have been considered.

        If a centre tank fuel pump fails with fuel in the centre tank, accomplish the FUEL PUMP LOW PRESSURE