(6) Make sure that the drain tube (20) is aligned correctly on the engine.

 (7) TORQUE the nut (15) to between 20 and 25 lbf.in (0.22 and 0.28 m.daN).

 (8) Torque the drain tubes and coupling nuts. CAUTION : USE A SECOND WRENCH TO HOLD THE FITTINGS WHEN YOU

_______ LOOSEN/TIGHTEN THE TUBE COUPLING NUTS. THIS PREVENTS DAMAGE TO THE TUBES.
 (a) TORQUE the drain tubes (30) and (20) coupling nuts to between 200 and 250 lbf.in (2.26 and 2.82 m.daN).
 5. Close-up
________ Subtask 71-73-49-410-056
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.

 (2) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040)
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

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 (3) Remove the warning notice(s).
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 TASK 71-73-49-000-025

 Removal of the Fuel Overboard Drain Tube
 __________________

1. Reason for the Job

 2. Job Set-up Information

R  This task is only applicable for engines CFM56-5B PRE SPIB CFM02253MW1. ______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific protective covers
 No specific warning notice

 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors
 71-73-49-991-304 Fig. 405

 3. Job Set-up
__________
 Subtask 71-73-49-941-057

 A. Safety Precautions
 (1) On the center pedestal, on the ENG panel 115VU:

 (a) Put a warning notice to tell persons not to start the engine.

 (2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.

 (3) On the overhead maintenance panel 50VU:

 (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
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 (b) Put a warning notice to tell persons not to energize the FADEC 1(2).
 Subtask 71-73-49-010-057
 B. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 4. Procedure
_________
 (Ref. Fig. 405/TASK 71-73-49-991-304)
 Subtask 71-73-49-020-056
 A. Removal of the Fuel Overboard Drain Tube
 (1) Disconnect the fuel overboard drain tube (5) from the tube.

 (2) Remove the bolt (15), the nut (20) and the clamp (10) that attach the drain tube (5) to the bracket on the transfer gearbox.

 (3) Remove the bolt (25), the spacer (30) and the nut (35) that attach the drain tube (5) to the bracket at the bottom of the transfer gearbox.

 (4) Remove the drain tube (5) from the engine.

 (5) Put protective covers on the tubes.

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 Fuel Overboard Drain Tube Figure 405/TASK 71-73-49-991-304
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 TASK 71-73-49-400-025
 Installation of the Fuel Overboard Drain Tube
 1. Reason for the Job
__________________
 This task is only applicable for engines CFM56-5B PRE SPIB CFM02253MW1.
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific warning notice
　
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