B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 72-23-00-991-303 Fig. 404
 3. Job Set-up
__________ Subtask 72-23-00-941-074
 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.

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 (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.

 (b) Put a warning notice to tell persons not to energize the FADEC 1(2).

 Subtask 72-23-00-010-085
 B. Get Access
 (1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 (2) Put an access platform in position.

 Subtask 72-23-00-040-062
 C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
 Subtask 72-23-00-010-095
 D. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040):
 FOR 1000EM1
 451AL, 452AR
 FOR 1000EM2
 461AL, 462AR

 4. Procedure
_________
 (Ref. Fig. 404/TASK 72-23-00-991-303)
 Subtask 72-23-00-020-062
 A. Remove the Aft Acoustical Panels as follows (typical, any panel):
 CAUTION : DO NOT EXCEED THE SPEED OF 200 RPM TO UNTORQUE AND LOOSEN ALL
_______ ACOUSTICAL PANEL SCREWS BY USING PNEUMATIC OR ELECTRICAL SCREW DRIVERS.
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 Aft Acoustical Panel (Configuration 1 and Configuration 2)
 Figure 404/TASK 72-23-00-991-303

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 (1) Remove the screws (130) that attach the aft acoustical panel (140).
 NOTE : If one screw is found untorqued, it must be discarded and
____
 replaced for re-installation.

 PRE SB 72-071 (Configuration One)
 (2) Disengage panel (140) from case and T/R adapter ring. Remove the panel (140) which comes with its two lateral bonded seals.

 POST SB 72-071 (Conguration Two)

 (3) Disengage panel (140) from case and T/R adapter ring. Remove the panel (140). This panel will come without its U-shaped seal (145). Let the seal (145) squeezed between the two struts and adjacent aft acoustical panels that "frame" the panel you remove. Remove the seal

 (145) and thus, the two adjacent panels, only if this seal is badly damaged.
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 TASK 72-23-00-400-026
 Installation of the Aft Acoustical Panels
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
 No specific access platform 1 m (3 ft. 3 in.)
 No specific Torque Wrench : range 36.00 to 220.00 lbf.in

 (0.40 to 2.60 m.daN)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2101 USA MIL-T-5544 graphite grease (Ref. 70-30-00) R
 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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