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 (4) Put blanking plugs on the two ends of the middle anti-ice duct (35)
 and the ducts (15) and (30).
 (5) Remove the middle anti-ice duct (35) from the engine. 
R  **ON A/C 061-061, 
R  Subtask 30-21-49-020-052-A 
R  A. Removal of the Middle Anti-ice Duct 
R  (1) Remove the coupling (20) that connects the middle anti-ice duct (35) 
R  to the forward anti-ice duct (30). Keep the seal (25) to use again if 
R  it is serviceable. 
R  (2) Remove the coupling (20) that connects the middle anti-ice duct (35) 
R  to the top anti-ice duct (15). Keep the seal (25) to use again if it 
R  is serviceable. 
R  (3) Remove the bolts (40), the washers (45), and the nuts (50) that 
R  attach the middle anti-ice duct (35) to the fireshield. 
R  (4) Remove the bolt (75), the washer (70), the bracket (65), the bush 
R  (60) and the nut (55) that attach the middle anti-ice duct (35) to 
R  the fireshield. 
R  (5) Put blanking plugs on the two ends of the middle anti-ice duct (35) 
R  and the ducts (15) and (30). 
R  (6) Remove the middle anti-ice duct (35) from the engine.

 

R **ON A/C ALL
 TASK 30-21-49-400-045
 Installation of the Middle Anti-ice Duct
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific fiber hammer
 No specific warning notice
 No specific access platform 0.5 m (1 ft. 8 in.)
 No specific Torque Wrench : range 36.00 to 220.00 lbf.in

 (0.40 to 2.60 m.daN)
 B. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
25 seal 30-21-49 01A-130
 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
 the External Power
 71-13-00-010-040 Opening of the Fan Cowl Doors
 71-13-00-410-040 Closing of the Fan Cowl Doors
 78-30-00-081-041 Make the Thrust Reverser Serviceable after

 Maintenance -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance
 78-36-00-010-040 Opening of the Thrust Reverser Doors
 78-36-00-410-040 Closing of the Thrust Reverser Doors

R **ON A/C 001-049, 051-060, 062-099, 101-149, 151-199, 201-299, 301-399, R 401-499,
 30-21-49-991-302 Fig. 403
 **ON A/C 061-061,
 30-21-49-991-302-A Fig. 403A
 **ON A/C ALL
 3. Job Set-up
__________
 Subtask 30-21-49-860-065
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).

 (2)
 On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.

 (3)
 On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).

 (4)
 Make sure that the access platform is in position.

 

 Subtask 30-21-49-010-060
 B. Get Access
 (1)
 Make sure that the fan cowl doors are open (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR

 (2)
 Make sure that the thrust reverser doors are open (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR

 Subtask 30-21-49-040-055
 C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
 Subtask 30-21-49-865-059
 D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
　
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