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R  fuel onboard, and the actual fuel onboard. 
R 
R  The fuel leak detection warning is only given in flight phase 6 (cruise). 
R  B. Test 
R  NOTE : An ECAM warning has been shown that identifies a difference____ 
R  between the actual fuel (FOB) used and a calculated value of the 
R  the fuel used. 
R  (1) There is no fault confirmation test available for the fuel leak 
R  detection sub-systems in the FQIC or the FWC. 
R  NOTE : The fuel leak detection function will only operate, and the____ 
R  flight crew can only be be given the warning, if the standards 
R  of equipment installed on the aircraft are as follows: 
R  - FWC standard H2F2(Mod 33374) 
R  - DMC standard V50 EIS1(Mod 31056) OR DMC standard S3-1 EIS2 
R  (Mod 30368) 
R  - SDAC standard H2D2(Mod 30365) 
R  - FQIC standard -13-10 (Mod 33877) 
R  - SDAC pin programming for fuel leak detection function (Mod 
R  32650). 
R  4. Fault Isolation_______________ 
R  A. Procedure 
R  (1) Do the TSM procedure for fuel leaks (Ref. TASK 28-11-00-810-806). 
R  NOTE : The referenced TSM Task is for fuel leaks on aircraft with or____ 
R  without the fuel leak detection system.

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 229-299, 401-499, ∞∞28-11-00∞∞∞∞∞∞∞∞∞∞Page 205
 Aug 01/05 CES

 

R **ON A/C ALL
 TASK 28-11-00-810-806
 Fuel - A Leak is Shown by Discrepancies in the Fuel On Board (FOB) and Fuel
 Used (FU) Calculations During Flight
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
 1. Possible Causes
_______________
 - VALVE-LP FUEL, ENG 1 (12QM)

 - VALVE-LP FUEL, ENG 2 (13QM)

 - CHECK VALVE-FUEL RECIRCULATION, L (122QM)

 - CHECK VALVE-FUEL RECIRCULATION, R (123QM)

 - incorrect assembly

 - damage

 - fuel sealant

 - unserviceable seal

 - fuel tank leak

 - engine fuel supply lines

 - engine/IDG cooling return to tank fuel lines

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-13-00-810-801 Fuel - Leak Shows at Drain Mast
 AMM 28-43-00
 IPC 281605-7
 AMM 12-11-28-650-003 Pressure Refuel with Automatic Control
 AMM 12-11-28-650-004 Pressure Refuel with Manual Control
 AMM 12-11-28-650-007 Use of Magnetic Level Indicators (MLI)
 AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
 External Power

 AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power

 AMM 28-11-00-280-002 Fuel Tank Leak Checks
 AMM 28-16-00-710-002 Operational Check of Pylon Check Valve to Ensure
 Valve not Failed Open

 AMM 28-16-42-000-001 Removal of the Fuel Recirculation Check-valve
 AMM 28-16-42-400-001 Installation of the Fuel Recirculation Check-valve
 AMM 28-24-41-000-001 Removal of the LP Fuel Valve 12QM(13QM)
 AMM 28-24-41-400-001 Installation of the LP Fuel Valve 12QM(13QM)
 AMM 28-25-00-650-001 Pressure Defuel
 AMM 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
 Center Tank

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-11-00∞∞∞∞∞∞∞∞∞∞Page 206
 Aug 01/05 CES 3. Fault Confirmation

 

__________________
 A. Test
 There is no fault confirmation test available for the values of Fuel On Board (FOB) and Fuel Used (FU) as used in the FOB and FU calculations. But, the airline operations, and the flight crew during flight, know the typical fuel load required for specfic flight legs. Thus all significant discrepancies must be investigated.
 (1) Get as much data (as possible) about the fuel leak FOB/FU discrepancy and the subsequent steps of the unusual and/or emergency procedure used, from:

 - the aircraft technical log

 - the flight crew.

 

 (2) Fuel On Board (FOB) The FOB value is supplied from the FQIS. If it is not shown degraded it can be accepted as correct for this TSM Task. If necessary use one of the two sub-procedures that follow:
　
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