Document ID: chunk:federal_register_of_legislation:F2011L01847:body:0:p2
Version: federal_register_of_legislation:F2011L01847
Segment Type: other
Provision Reference: 
Character Range: 2760–5737

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 non-normal procedure.

        When defueling centre or main wing tanks, the Fuel Pump Low Pressure indication lights must be monitored and the fuel pumps positioned to OFF at the first indication of fuel pump low pressure.  Defueling with passengers on board is prohibited.
      The limitations contained in this Directive supersede any conflicting basic Aircraft Flight Manual limitations.
      Accomplishment of Requirement 2 of AD/B737/198 or Requirement 1.b. of AD/B737/198 Amdt 1 is acceptable for compliance with the requirements of this Directive.  This Directive does not require that those actions be repeated unless the terminating actions specified in Requirement 6 of AD/B737/198 or Requirement 3 of AD/B737/198 Amdt 1 have been accomplished.
      Accomplishment of the terminating actions specified in Requirement 6 of AD/B737/198 or Requirement 3 of AD/B737/198 Amdt 1, does not allow removal of the AFM revisions required by this Directive.
      2. For mixed fleet operations (i.e. operators with aircraft with line number 1494 and subsequent together with aircraft with line number below 1494) install a placard on the flight deck of aircraft that do not have automatic fuel pump shut-off system installed to alert the crew that the Requirement 1 procedures must be followed on that aircraft stating either:
        "AD/B737/202 fuel usage restrictions required" or

        "AD 2002-24-51 fuel usage restrictions required".
      For aircraft that have a placard required by AD/B737/198 or AD/B737/198
      Amdt 1, that placard can be used to fulfil this requirement for mixed fleet operations.

             Note:  FAA Emergency AD 2002-24-51 and FAA AMOC Letter 140S-04-105 dated
             28 May 2004 refer.
Compliance:  Date remains unchanged to that detailed in Amendment 1 of this Directive.

             Despite the new AD/B737/202 Amdt 2, an exclusion or an alternate method of compliance that was in force before the coming into effect of AD/B737/202 Amdt 2 continues to be in force.
             This Amendment becomes effective on 30 September 2011.
Background:  The United States Federal Aviation Administration has received reports indicating that two fuel tank pumps from different Model 747 series aeroplanes showed evidence of extreme localized overheating of parts in the priming and vapour pump section of the fuel pump.  The priming and vapour pump section of the pump is open to the fuel tank via the pump inlet line and the vapour vent of the pump.  The cause of this overheating is believed to be friction between the pump parts; however, the specific cause of the friction is unknown at this time.
             The fuel pumps installed on Model 737-600, -700, -700C, -800, and -900;