3. Job Set-up
__________

 Subtask 30-21-49-861-063
 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 Subtask 30-21-49-941-082
 B. 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.

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

 (4)
 On the ANTI ICE section of the panel 25VU:

 -make sure that the ON legend of the ENG1(2) pushbutton switch is off.
 Subtask 30-21-49-865-079
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 1000EM1
 122VU ANTI ICE/ENG/1 1DN1 X10 FOR 1000EM2 122VU ANTI ICE/ENG/2 1DN2 W10
 1EFF : ALL 1 30-21-49Page 602 1 1 Aug 01/01R 1 1 1CES 1

 Subtask 30-21-49-010-110

 D. 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 the access platform in position.

 Subtask 30-21-49-040-076
 E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
 Subtask 30-21-49-010-111
 F. Open the right thrust reverser cowl door (Ref. TASK 78-36-00-010-040): FOR 1000EM1 452AR FOR 1000EM2 462AR
 4. Procedure
_________
 Subtask 30-21-49-210-067
 A. Inspection/Check of the Engine Air Intake Ice Protection
 (1) Examine the anti ice valve:
 -make sure that the anti ice valve and its attach fittings are in
 the correct condition and satisfactorily clean R
 -make sure that the electrical connector is correctly connected and in the correct condition.
 NOTE : If necessary, the valve may be locked in the open position for
____ a short period of time. However, the valve should be replaced as soon as possible.
 (2)
 Examine the electrical harness for :

 -correct external condition,
 -clean condition,
 -wear,
 -signs of overheat,
 -scaling of the insulation,
 -damage which can change its characteristics.

 (3)
 Make sure that the duct :

 -has no cracks or signs of leaks,
 -is not damaged.

 (4)
 Make sure that the black coating of the duct is not damaged.

 (5)
 Make sure that the motive-pressure regulation line :

 -has no cracks or signs of leaks,
 -is not damaged.

 (6)
 Make sure that the clamps are correctly installed and make sure that their mounts have no cracks.

 5. Close-up
________ Subtask 30-21-49-410-097
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the right thrust reverser cowl door (Ref. TASK 78-36-00-410-040): FOR 1000EM1 452AR FOR 1000EM2 462AR

 Subtask 30-21-49-440-066
 B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 30-21-49-410-098
 C. Close Access
 (1)
 Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 (2)
 Remove the access platform(s).

 1EFF : ALL 1 30-21-49Page 604 1 1 Aug 01/01R 1 1 1CES 1

 (3) Remove the warning notice(s).
 Subtask 30-21-49-865-080
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): FOR 1000EM1 1DN1. FOR 1000EM2 1DN2.
 Subtask 30-21-49-862-063
 E. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
 1EFF : ALL 1 30-21-49Page 605 1 1 Aug 01/01R 1 1 1CES 1

 TASK 30-21-49-210-040
 Visual Inspection of the Anti-Ice System Hoses, Tubes and Ducts
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
　
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