28-21 MAIN FUEL PUMP SYSTEM

28-21-00 MAIN FUEL PUMP SYSTEM

PB.001 MAIN FUEL PUMP SYSTEM - DESCRIPTION AND OPERATION
PB.201 MAIN FUEL PUMP SYSTEM - MAINTENANCE PRACTICES
- 28-21-00-170-001-A [10]
  To Purge the Pressure Switch Feed Line of the Main Fuel Pumps
PB.401 MAIN FUEL PUMP SYSTEM - DEACTIVATION/REACTIVATION
- 28-21-00-040-001-A [10]
  Operational Check of the Recirculation System When the Main Fuel-Pump 2 does not Operate
- 28-21-00-040-002-A [10]
  Deactivation of the Center Tank
- 28-21-00-440-002-A [10]
  Reactivation of the Center Tank
PB.501 MAIN FUEL PUMP SYSTEM - ADJUSTMENT/TEST
- 28-21-00-710-001-A [10]
  Operational Test of the Wing-Tank Fuel Control
- 28-21-00-720-001-A [10]
  Functional Test of the Center-Tank Fuel Control
- 28-21-00-710-007-A [10]
  Operational Test of the Main Fuel-Pump System with Fuel Flow by Transfer
- 28-21-00-710-006-A [10]
  Operational Test of the Fuel Flow through the Fuel Pumps with Gravity Feed
- 28-21-00-790-001-A [10]
  Leak Test of the Main Fuel-Pump-System Pipelines
- 28-21-00-790-002-A [10]
  Visual Check of Pipes, Couplings and LP Valve External to Tank From Front Spar to Disconnect Panel For Leaks With Booster Pump On and LP Valve Open
- 28-21-00-710-002-A [10]
  Operational Check of Wing Tank Pump Pressure Sense Line Check Valves
- 28-21-00-710-012-A [10]
  Operational Test of the Wing-Tank Pump-Canister Check-Valves
- 28-21-00-710-003-A [10]
  Operational Check of Center Tank Pump Canister Check Valves
- 28-21-00-710-004-A [10]
  Operational Test of the Suction and the Air Release Valves
- 28-21-00-710-008-A [10]
  Operational Check of Air Release Valves to Ensure Adequate Fuel Flow Under Suction Feed Conditions
- 28-21-00-710-005-A [10]
  Operational Check to Ensure that Both Center Tank Pumps Feed for 2 Minutes After Engine Start
- 28-21-00-710-009-A [10]
  Operational Test of the Center Tank Pump Control by the Low Level Sensors
- 28-21-00-710-010-A [10]
  Operational Test of the Center-Tank Pump Control
- 28-21-00-720-004-A [10]
  Functional Test of the Center-Tank Fuel-Pump-Cannister Check-Valves
- 28-21-00-710-011-A [10]
  Operational Leak Test of the Air Release Valve Float
- 28-21-00-720-802-A [10]
  Remove Air Release Valve for Functional Check of Float
PB.601 MAIN FUEL PUMP SYSTEM - INSPECTION/CHECK
- 28-21-00-280-001-A [10]
  Check Suction Valves For Full and Free Movement
- 28-21-00-220-001-A [10]
  Detailed Inspection of Wing Tank Fuel-Pumps for Detached Identification Labels

28-21-15 PRESSURE SWITCH - FUEL PUMP

PB.401 PRESSURE SWITCH - FUEL PUMP - REMOVAL/INSTALLATION
- 28-21-15-000-003-A [10]
  Removal of the Fuel-Pump Pressure-Switch
- 28-21-15-400-001-A [10]
  Installation of the Fuel-Pump Pressure-Switch

28-21-41 VALVE - AIR RELEASE, LOW PRESSURE

PB.401 VALVE - AIR RELEASE, LOW PRESSURE - REMOVAL/INSTALLATION
- 28-21-41-000-001-A [10]
  Removal of the Low Pressure (LP) Air-Release-Valve
- 28-21-41-400-001-A [10]
  Installation of the Low Pressure (LP) Air-Release Valve

28-21-42 VALVE - SUCTION, FUEL PUMP

PB.401 VALVE - SUCTION, FUEL PUMP - REMOVAL/INSTALLATION
- 28-21-42-000-001-A [10]
  Removal of the Fuel-Pump Suction Valve
- 28-21-42-400-001-A [10]
  Installation of the Fuel-Pump Suction Valve

28-21-43 CHECK VALVE - FUEL PUMP

PB.401 CHECK VALVE - FUEL PUMP - REMOVAL/INSTALLATION
- 28-21-43-000-001-A [10]
  Removal of the Fuel-Pump Check Valve
- 28-21-43-400-001-A [10]
  Installation of the Fuel-Pump Check Valve
- 28-21-43-000-002-A [10]
  Removal of the Fuel-Pump Check-Valve
- 28-21-43-400-002-A [10]
  Installation of the Fuel-Pump Check-Valve
- 28-21-43-000-003-A [10]
  Removal of the Fuel-Pump Check-Valve
- 28-21-43-400-003-B [10]
  Installation of the Fuel-Pump Check-Valve

28-21-45 VALVE - SEQUENCE

PB.401 VALVE - SEQUENCE - REMOVAL/INSTALLATION
- 28-21-45-000-001-A [10]
  Removal of the Sequence Valve
- 28-21-45-400-003-A [10]
  Installation of the Sequence Valve

28-21-49 FUEL PUMP FAIRINGS

PB.401 FUEL PUMP FAIRINGS - REMOVAL/INSTALLATION
- 28-21-49-000-001-A [10]
  Removal of the Fuel Pump Fairings
- 28-21-49-400-001-A [10]
  Installation of the Fuel Pump Fairings

28-21-51 PUMP - FUEL

PB.401 PUMP - FUEL - REMOVAL/INSTALLATION
- 28-21-51-000-001-A [10]
  Removal of the Fuel Pumps
- 28-21-51-400-001-A [10]
  Installation of the Fuel Pumps
- 28-21-51-000-002-A [10]
  Removal of the Fuel Pumps
- 28-21-51-400-002-A [10]
  Installation of the Fuel Pumps

28-21-52 CANISTER - FUEL PUMP

PB.401 CANISTER - FUEL PUMP - REMOVAL/INSTALLATION
- 28-21-52-000-001-A [10]
  Removal of the Fuel Pump Canister
- 28-21-52-400-001-A [10]
  Installation of the Fuel Pump Canister
- 28-21-52-000-002-A [10]
  Removal of the Fuel Pump Canister
- 28-21-52-400-002-A [10]
  Installation of the Fuel Pump Canister
- 28-21-52-000-003-A [10]
  Removal of the Fuel Pump Canister
- 28-21-52-400-003-A [10]
  Installation of the Fuel Pump Canister
- 28-21-52-000-004-A [10]
  Removal of the Check Valve of the Fuel Pump Canister
- 28-21-52-400-004-A [10]
  Installation of the Check Valve of the Fuel Pump Canister
- 28-21-52-000-005-A [10]
  Removal of the Slide Valve of the Fuel Pump Canister
- 28-21-52-400-005-A [10]
  Installation of the Slide Valve of the Fuel Pump Canister
- 28-21-52-000-006-A [10]
  Removal of the Slide Valve of the Fuel Pump Canister
- 28-21-52-400-006-A [10]
  Installation of the Slide Valve of the Fuel Pump Canister

28-21-53 JET PUMP - WATER SCAVENGE

PB.401 JET PUMP - WATER SCAVENGE - REMOVAL/INSTALLATION
- 28-21-53-000-001-A [10]
  Removal of the Jet Pump
- 28-21-53-400-001-A [10]
  Installation of the Jet Pump
- 28-21-53-000-002-A [10]
  Removal of the Jet Pump
- 28-21-53-400-002-A [10]
  Installation of the Jet Pump
- 28-21-53-000-003-A [10]
  Removal of the Jet Adaptor Assembly
- 28-21-53-400-003-A [10]
  Installation of the Jet Adaptor Assembly

28-21-54 STRAINER - PUMP INLET, WING TANK

PB.401 STRAINER - PUMP INLET, WING TANK - REMOVAL/INSTALLATION
- 28-21-54-000-001-A [10]
  Removal of the Fuel Pump Strainer
- 28-21-54-400-001-A [10]
  Installation of the Fuel Pump Strainer
PB.401 CONF:[01] STRAINER - PUMP INLET, WING TANK - REMOVAL/INSTALLATION
- 28-21-54-000-002-A [10]
  Removal of the Fuel Pump Strainers
- 28-21-54-400-002-A [10]
  Installation of the Fuel Pump Strainers