Subtask 21-26-42-420-054
 C. Install the filter cover assembly.
 (1) Move the handle to the bottom to lock the cover.
 Subtask 21-26-42-210-057

 D. Make an inspection of the Drain Hose/Drain Hole
 (Ref. Fig. 603/TASK 21-26-42-991-004)

 (1)
 Remove the clamp (4).

 (2)
 Examine the drain hose (5)/drain hole. Make sure that they are not clogged.

 (3) Install the clamp (4) and tighten it. R **ON A/C 301-399, 401-499,
 Subtask 21-26-42-020-054-A
 A. Removal of the Demister Filter
 (1)
 Turn the seven door fasteners of the filter housing (1) and open the door.

 (2)
 Remove the demister filter (6).

R 1EFF : 001-049, 051-099, 101-105, 301-399, 1 21-26-42Page 623 1401-499, 1Aug 01/05 1 1 1CES 1 Subtask 21-26-42-210-056-A

 B. Visual Inspection of the Filter Assembly
 (1)
 Do a visual inspection of the filter assembly for signs of impact, distortion and defective welding.

 (2)
 Make sure that the syphon assembly (2) is in the correct condition.

 (3)
 If not, replace it:

 (a)
 Remove the four screws (3) and the four washers (4) from the syphon assembly (2).

 (b)
 Release the upper clamp (5) from the hose of the syphon assembly (2).

 (c)
 Remove the syphon assembly (2) from the filter housing (1).

 (d)
 Put a new syphon assembly (2) in position below the filter housing (1).

 (e)
 Connect the hose of the syphon assembly (2) to the filter housing

 (1) and safety it with the upper clamp (5).

 (f)
 Install the four washers (4) and the four screws (3) on the syphon assembly (2) and tighten.

 Subtask 21-26-42-420-054-A
 C. Installation of the Demister Filter
 (1)
 Put the demister filter (6) in position in the filter housing (1).

 (2)
 Turn and safety the seven door fasteners of the filter housing (1) to close the door.

 Subtask 21-26-42-210-057-A
 D. Inspection of the Drain Hose/Drain Hole
 (Ref. Fig. 603A/TASK 21-26-42-991-004-A)

 (1)
 Remove the clamp (7).

 (2)
 Remove the drain hose (8).

R 1EFF : 301-399, 401-499, 1 21-26-42Page 624 1 1 Aug 01/05 1 1 1CES 1

 (3)
 Examine the drain hose (8) and the drain hole (9). Make sure that they are not clogged.

 (4)
 Install the drain hose (8).

 (5) Install the clamp (7) and tighten it. R **ON A/C 001-049, 051-099, 101-105, 301-399, 401-499,
 5. Close-up
________
 Subtask 21-26-42-410-053

 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access door 824 (Ref. TASK 52-41-00-410-002).

 (3) Remove the access platform(s).
 Subtask 21-26-42-865-058

 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HQ, 2HQ, 3HQ, 5HQ, 6HQ
 Subtask 21-26-42-862-054
 C. De-energize the ground service network
 (Ref. TASK 24-42-00-862-001).

R 1EFF : 001-049, 051-099, 101-105, 301-399, 1 21-26-42Page 625 1401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C ALL

 TASK 21-26-42-210-002
 Detailed Inspection of Elbow Drain Hose Connection Area Downstream of Blower Fan
 1.
 Reason for the Job

__________________
 Refer to the MPD TASK: 212600-07

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 No specific warning notice
 No specific access platform 1.60 m (5 ft. 3 in.)

 B. 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
 52-41-00-410-002  Close the Avionics Compartment Doors after Access

R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-214,
　
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