28-21 MAIN FUEL PUMP SYSTEM

28-21-00 MAIN FUEL PUMP SYSTEM

PB.201 MAIN FUEL PUMP SYSTEM - FAULT ISOLATION PROCEDURES
- 28-21-00-810-801-A [8]
  Fuel Pumps - Left Wing Tank Fuel Pump No. 1 (Outer) 21QA System Malfunction
- 28-21-00-810-802-A [8]
  Fuel Pumps - Right Wing Tank Fuel Pump No. 1 (Inner) 22QA System Malfunction
- 28-21-00-810-803-A [8]
  Fuel Pumps - Left Wing Tank Fuel Pump No. 2 (Inner) 25QA System Malfunction
- 28-21-00-810-804-A [8]
  Fuel Pumps - Right Wing Tank Fuel Pump No. 2 (Outer) 26QA System Malfunction
- 28-21-00-810-805-A [8]
  Fuel Pumps - Left Wing Tank Fuel Pump No. 1 System Failure (Standby Supply)
- 28-21-00-810-806-A [8]
  Fuel Pumps - Right Wing Tank Fuel Pump No. 1 System Failure (Standby Supply)
- 28-21-00-810-807-A [8]
  Fuel Pumps - Left Wing Tank Fuel Pump No. 1 Contactor Control Failure (Normal Supply)
- 28-21-00-810-808-A [8]
  Fuel Pumps - Right Wing Tank Fuel Pump No. 1 Contactor Control Failure (Normal Supply)
- 28-21-00-810-809-A [8]
  Fuel Pumps - Left Wing Tank Fuel Pump No. 1 Contactor Control Failure (Standby Supply)
- 28-21-00-810-810-A [8]
  Fuel Pumps - Right Wing Tank Fuel Pump No. 1 Contactor Control Failure (Standby Supply)
- 28-21-00-810-811-A [8]
  Fuel Pumps - Left Wing Tank Fuel Pump No. 2 Contactor Control Failure
- 28-21-00-810-812-A [8]
  Fuel Pumps - Right Wing Tank Fuel Pump No. 2 Contactor Control Failure
- 28-21-00-810-813-A [8]
  Fuel Pumps - Center Tank Fuel Pump No. 1 (Left Side) 37QA System Malfunction
- 28-21-00-810-814-A [8]
  Fuel Pumps - Center Tank Fuel Pump No. 2 (Right Side) 38QA System Malfunction
- 28-21-00-810-815-A [8]
  Fuel Pumps - RELAY-BUS 1/ESS, L(R) TK PUMP 1 Failure Indication at Engines Start
- 28-21-00-810-816-A [8]
  Fuel Pumps - Center Tank Autofeed Warning and/or FAULT Legend Failure
- 28-21-00-810-817-A [8]
  Fuel Pumps - Center Tank Fuel Pump No. 1 (Left Side) Contactor Control Failure (Manual Control)
- 28-21-00-810-818-A [8]
  Fuel Pumps - Center Tank Fuel Pump No. 2 (Right Side) Contactor Control Failure (Manual Control)
- 28-21-00-810-819-A [8]
  Fuel Pumps - Center Tank Pump 1 and Center Tank Pump 2 Operate Incorrectly in Auto Mode When Slats Extended More Than 16 Degrees
- 28-21-00-810-820-A [8]
  Fuel Pumps - Center Tank Autofeed Failure (Pumps Do Not Stop At CTR TK Low Fuel Level)
- 28-21-00-810-821-A [8]
  Fuel Pumps - Center Tank Autofeed Failure (Pumps Do Not Stop At Wing-Tank(s) Innercell Full Level)
- 28-21-00-810-822-A [8]
  Fuel Pumps - Left Wing Tank Pumps 1 And 2 System Failure
- 28-21-00-810-823-A [8]
  Center Tank Autofeed System (Sequence/Distribution) Fault - The Fuel Has Not Been Used In The Correct Sequence During An Aircraft Flight
- 28-21-00-810-824-A [8]
  Fuel Pumps - Right Wing Tank Pumps 1 And 2 System Failure
- 28-21-00-810-825-A [8]
  Internal Fuel Leak Which Causes a Fuel Imbalance or a Discharge From a NACA Vent During Taxi or Flight
- 28-21-00-810-826-A [8]
  Fuel Pumps - Center Tank Pumps 1 and 2 System Malfunction
- 28-21-00-810-827-A [8]
  Fuel - L(R) Wing Tank Pumps 1, Power Supply (Normal) - C/B-1QA(2QA) Tripped
- 28-21-00-810-828-A [8]
  Fuel - L(R) Wing Tank Pumps 2, Power Supply - C/B-7QA(8QA) Tripped
- 28-21-00-810-829-A [8]
  Fuel - Loss of Power supply to the Center Tank Pump 1(2)
- 28-21-00-810-830-A [8]
  Fuel - L(R) Wing Tank Pumps 1, Power Supply (Smoke) - C/B-11QA(12QA) Tripped
- 28-21-00-810-831-A [8]
  Fuel Pumps - L #amp# R Wing Tank Pumps 1 Do Not Run And No Fault Indication Shown
- 28-21-00-810-832-A [8]
  Fuel Pumps - L #amp# R Wing Tank Pumps 2 Do Not Run And No Fault Indication Shown
- 28-21-00-810-833-A [8]
  Fuel Pumps - Center Tank Pumps 1 And 2 Do Not Run And No Fault Indication Shown
- 28-21-00-810-834-A [8]
  Fuel Pumps - Both Center Tank Pumps Off (Configuration), Forgot To Switch Them On
- 28-21-00-810-839-A [8]
  Fuel Pumps (All) - Failure
- 28-21-00-810-840-A [8]
  Unwanted Transfer Of Fuel From The Left Or Right Wing Tank To The Center Tank During Flight/Ground Phases When The Wing Tank Pumps Only Are In Operation
- 28-21-00-810-841-A [8]
  Center Tank Pump Auto Control (Two Minute Run Period At Main Engine Start) Failure
- 28-21-00-810-842-A [8]
  Adjacent Wing Tank Fuel Pump, Pressure-Switch Isolating Check-Valve Failure
- 28-21-00-810-843-A [8]
  No Transfer or Reduced Supply (Movement) of Fuel From a Main Fuel Pump but the Related Pump P/BSW FAULT Legend (light) Does Not Come On
- 28-21-00-810-844-A [8]
  Fuel - A Mandatory Inspection of the Wing Tank Fuel Pumps and Canisters for Detached Identification Labels (Ref. Service Bulletin No. 28-1102)
- 28-21-00-810-845-A [8]
  Fuel - During Aircraft Ops (That Include A Refuel Without A Break In Electrical Power) The CTR TK Pumps Do Not Operate After The CTR TK Is Refueled From Empty
- 28-21-00-810-848-A [8]
  MAIN FUEL PUMP SYSTEM - Left Wing Tank Overflow
- 28-21-00-810-849-A [8]
  MAIN FUEL PUMP SYSTEM - Right Wing Tank Overflow
PB.301 MAIN FUEL PUMP SYSTEM - TASK SUPPORTING DATA