Refer to the MMEL TASK: 28-21-01 401 ALL
 28-CONTENTS Page 15 Aug 01/05 R CES

 CHAPTER 28
__________
 FUEL
 TABLE OF CONTENTS
_________________
 SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY________ C ____ ___________
 MAIN FUEL PUMP SYSTEM 28-21-00
 ADJUSTMENT/TEST 501 ALL Operational Test of the Wing-Tank 501 ALL Fuel Control Functional Test of the Center-Tank 509 001-049, 051-099 Fuel Control 101-149, 151-199
 201-299, 401-499 Operational Test of the Main 530 ALL Fuel-Pump System with Fuel Flow by Transfer Operational Test of the Fuel Flow 538 ALL through the Fuel Pumps with Gravity Feed Leak Test of the Main 543 ALL Fuel-Pump-System Pipelines Visual Check of Pipes, Couplings 547 ALL and LP Valve External to Tank From Front Spar to HP Valve For Leaks With Booster Pump On and LP Valve Open Operational Check of Wing Tank 556 ALL Pump Pressure Sense Line Check Valves Operational Test of the Wing Tank 563 ALL Pump Canister Check Valves Operational Check of Center Tank 572 001-049, 051-099 Pump Canister Check Valves 101-149, 151-199
 201-299, 401-499 Operational Test of the Suction 576 ALL and the Air Release Valves Operational Check of Air Release 579 ALL Valves to Ensure Adequate Fuel Flow Under Suction Feed Conditions Operational Check to Ensure that 594 001-049, 051-099 Both Center Tank Pumps Feed for 2 101-149, 151-199 Minutes After Engine Start 201-299, 401-499 Operational Test of the Center A502 001-049, 051-099 Tank Pump Control by Low Level 101-149, 151-199 Sensors 201-299, 401-499 Operational Test of the Center A507 001-049, 051-099 Tank Pump Control 101-149, 151-199
 201-299, 401-499 Functional Test of the Center-Tank A515 001-049, 051-099 Fuel-Pump-Cannister Check-Valves 101-149, 151-199
 28-CONTENTS Page 16 Aug 01/05 R CES

 CHAPTER 28
__________
 FUEL
 TABLE OF CONTENTS
_________________
 SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY________ C ____ ___________
 201-299, 401-499 Operational Leak Test of the Air A520 ALL Release Valve Float
 MAIN FUEL PUMP SYSTEM 28-21-00
 INSPECTION/CHECK 601 ALL
 Check Suction Valves For Full and 601 ALL
 Free Movement

 PRESSURE SWITCH - FUEL PUMP 28-21-15
 REMOVAL/INSTALLATION 401 ALL
 Removal of the Fuel-Pump 401 ALL
 Pressure-Switch.
 Installation of the Fuel-Pump 408 ALL
 Pressure-Switch.

 VALVE - AIR RELEASE, LOW PRESSURE 28-21-41
 REMOVAL/INSTALLATION 401 ALL
 Removal of the Low Pressure (LP) 401 ALL
 Air-Release-Valve 86QM(87QM)
 Installation of the Low Pressure 407 ALL
 (LP) Air-Release-Valve 86QM(87QM)

 VALVE - SUCTION, FUEL PUMP 28-21-42
 REMOVAL/INSTALLATION 401 ALL
 Removal of the Fuel-Pump Suction 401 ALL
 Valve
 Installation of the Fuel-Pump 408 ALL
 Suction Valve

 CHECK VALVE - FUEL PUMP 28-21-43
 REMOVAL/INSTALLATION 401 ALL Removal of the Fuel-Pump 401 001-049, 051-099 Check-Valve 33QM(36QM), 34QM(35QM) 101-149, 151-199
 201-299, 401-499 Installation of the Fuel-Pump 406 001-049, 051-099 Check-Valve 33QM(36QM), 34QM(35QM) 101-149, 151-199
 201-299, 401-499 Removal of the Fuel-Pump 412 301-399, Check-Valve 149QM(152QM), 150QM(151QM) Installation of the Fuel-Pump 417 301-399, Check-Valve 149QM(152QM), 150QM(151QM) Removal of the Fuel-Pump 423 001-049, 051-099 Check-Valve 37QM(38QM) 101-149, 151-199
 201-299, 401-499 Installation of the Fuel-Pump 427 001-049, 051-099 Check-Valve 37QM(38QM) 101-149, 151-199
 28-CONTENTS Page 17 Aug 01/05 R CES

 CHAPTER 28
__________
 FUEL
 TABLE OF CONTENTS
_________________
 SUBJECT_______ CH/SE/SU _  PAGE EFFECTIVITY
________ C ____ ___________ 201-299, 401-499 VALVE - SEQUENCE 28-21-45
 REMOVAL/INSTALLATION 401  001-049, 051-099 101-149, 151-199 201-299, 401-499
 Removal of the Sequence Valve 401  001-049, 051-099 101-149, 151-199 201-299, 401-499
 Installation of the Sequence Valve 405  001-049, 051-099 101-149, 151-199 201-299, 401-499
 FUEL PUMP FAIRINGS  28-21-49
 REMOVAL/INSTALLATION 401 ALL
 Removal of the Fuel Pump Fairings 401 ALL
 Installation of the Fuel Pump 416 ALL
 Fairings

 PUMP - FUEL  28-21-51
 REMOVAL/INSTALLATION 401 ALL Removal of the Fuel Pumps 401 ALL 21QA(26QA) and 25QA(22QA) Installation of the Fuel Pumps 410 ALL 21QA(26QA) and 25QA(22QA) Removal of the Fuel Pumps 419 001-049, 051-099 37QA(38QA) 101-149, 151-199
　
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