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R  - the aircraft engines 
R  - the flap/slat system 
R  - the fuel system. 
R  Subtask 28-11-00-860-099 
R  B. Aircraft Maintenance Configuration 
R  WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED_______ 
R  BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. 
R  (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-
R  002). 
R  (2) Do the EIS start procedure (ECAM only) (Ref. TASK 31-60-00-860-001). 
R  (3) On panel 115VU, make sure that the ENG 1 and 2 switches are in the 
R  OFF position. 
R  Subtask 28-11-00-960-052 
R  C. Replace the Fuel Filter Elements 
R  (1) Replace the No. 1 and 2 engine fuel filter elements (Ref. TASK 73-11-
R  10-920-001). 
R  (2) Replace the APU fuel filter element: 
R  - for the 131-9(A) APU (Ref. TASK 49-32-41-920-001) 
R  - for the GTCP 36-300 APU (Ref. TASK 49-32-11-610-001) 
R  - for the APS 3200 APU (Ref. TASK 49-32-11-610-002). 
R  4. Procedure_________ 
R  Subtask 28-11-00-281-052 
R  A. Drain the Water from the Fuel Tanks 
R  (1) Drain the water from all of the fuel tanks (Ref. TASK 12-32-28-281-
R  001).

 

R  Subtask 28-11-00-670-052 
R  B. Biocidal Shock Treatment for Moderate Contamination - using Biobor 
R  Biocide with a Metered Injection Rig 
R  CAUTION : DO NOT USE A LARGE QUANTITY OF BIOBOR BIOCIDE IN THE FUEL:_______ 
R  - MORE THAN 270 PPM IS NOT PERMITTED IN THE ENGINES 
R  - MORE THAN 1000 PPM CAN CAUSE SOLIDS IF THERE IS WATER IN THE 
R  FUEL. 
R  NOTE : It is not necessary to defuel the aircraft before you start the____ 
R  biocide treatment. AIRBUS recommends that this procedure be done 
R  with the minimum amount of fuel on board (after flight and before 
R  fuel servicing). 
R  (1) To refuel the aircraft with the correct proportion of Biobor and 
R  fuel, (270 parts per million by weight) use the formula that follows 
R  for each fuel tank. 
R 
R  C(uf) = 270(FOB+UPLIFT)-FOB 
R  ---------------------
R  UPLIFT 
R 
R  Where: 
R  - C(uf) is the concentration of Biobor required in the fuel to be 
R  added in parts per million (ppm) 
R  - FOB is the fuel quantity (kg/lbs) already on board the aircraft 
R  (without added Biobor) 
R  - UPLIFT is the refuel quantity (kg/lbs) required to fill the 
R  aircraft (with Biobor added). 
R 
R  For example, if the fuel quantity on board (FOB) was 10000 (kg/lbs) 
R  and the refuel quantity to add (UPLIFT) was 10000 (kg/lbs): 
R 
R  C(uf) = 270(10000+10000)-10000 
R  ------------------------
R  10000 
R 
R  C(uf) = 5390000 
R  ---------
R  10000 
R 
R  C(uf) = 539 
R 
R  Thus the amount of Biobor necessary in the refuel quantity (UPLIFT) 
R  is 539 ppm by weight. 
R

 

R  NOTE : The concentration of Biobor in the refuel quantity must not be____ 
R  more than 1000 ppm by weight. If the result of the calculation 
R  is more than 1000 ppm, you must: 
R  - defuel the aircraft (Ref. TASK 28-25-00-650-001) 
R  - refuel the aircraft with the correct concentration of fuel 
R  and Biobor (270 ppm by weight) (Ref. TASK 12-11-28-650-003). 
R  (2) Record the onboard fuel quantity for each fuel tank. 
R  (3) Calculate the necessary quantity of fuel to be added to each fuel 
R  tank. 
R  (4) Use the procedure given in step (1) to calculate the correct 
R  concentration of BIOBOR to add during refuel. 
R  (5) Put MICROBIOLOGICAL CONTAMIN. PROTECT. MATERIALS (Material No. 17-
R  003) into the METERING EQUIPMENT - BIOCIDE, HAMMONDS FUEL ADDITIVES 
R  INC.(CAGE CODE 0U7J1). 
R  (6) Make sure that the METERING EQUIPMENT - BIOCIDE, HAMMONDS FUEL 
R  ADDITIVES INC.(CAGE CODE 0U7J1) is correctly electrically bonded. 
R  (7) Connect the fuel tanker to the input side of a METERING EQUIPMENT -
　
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