-replace the related Drain Mast (Ref. TASK 30-71-51-000-001) (Ref. TASK 30-71-51-400-001).
 1EFF : ALL 1 30-71-51Page 606 1 1 Nov 01/02R 1 1 1CES 1

 5. Close-up
________ R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-210, 401-499,
 Subtask 30-71-51-865-058
 A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
 -------------------------------------------------------------------------------
PANEL SERVICE IDENT. LOCATION
 -------------------------------------------------------------------------------
2000VU WASTE WATER ICE PROT - DRAINMAST FWD 1DU B06
 2001VU WASTE WATER ICE PROT - DRAINMAST AFT 11DU E01
 **ON A/C 106-149, 211-299, 301-399,
 Subtask 30-71-51-865-058-A
 A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
 -------------------------------------------------------------------------------
PANEL SERVICE IDENT. LOCATION
 -------------------------------------------------------------------------------
2000VU WASTE WIP - DRAINMAST FWD 1DU B06
 2001VU WASTE WIP - DRAINMAST AFT 11DU E01
 **ON A/C ALL
 Subtask 30-71-51-860-052
 B. Aircraft Maintenance Configuration
 (1) De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002)

 Subtask 30-71-51-410-054
 C. Close Access
 (1) Remove the access platform.

R HEATER ELEMENT (41DU,42DU,82DU,83DU,87DU,88DU,89DU,90DU) - REMOVAL/INSTALLATION
_______________________________________________________________________________ TASK 30-71-53-000-001 Removal of the Waste-Water De-icing Heater Elements (41DU, 42DU)
 1.
 Reason for the Job

__________________
 Self Explanatory

 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 access platform 2 m (6 ft. 7 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External
 Power 30-71-17-000-001 Removal of the Waste-Water De-icing Sensor (40DU) 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump
 30-71-53-991-001 Fig. 401

 3. Job Set-up
__________
 Subtask 30-71-53-861-051

 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

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 B. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------

R  C/B NOT APPLICABLE Subtask 30-71-53-010-050
 C. Get Access
 (1)
 Put an access platform in position at the FWD cargo-compartment door

 825.

 (2)
 Open the FWD cargo-compartment door 825 (Ref. TASK 52-30-00-860-001).

 (3)
 Set the CARGO COMPT LIGHT switch 6LU to ON position.

 (4)
 In the FWD cargo-compartment, remove the panels:
 FOR 41DU, 42DU
 131GW, 131HW, 131GF, 131FF, 131EF

 4. Procedure
_________
 (Ref. Fig. 401/TASK 30-71-53-991-001)
 Subtask 30-71-53-020-050
 A. Removal of the Heater Element
 (1)
 Remove and discard the cable ties of the identification and warning labels.

 (2)
 Remove the clamps (10) and the spacers (11).

 (3)
 Remove the velcro tape (3), the adhesive tape and the insulation muffs (8).

 (4)
 Carefully remove and discard the adhesive tape (2) which is on the longitudinal cut of the insulation sleeve (1).

 (5)
 Remove the insulation sleeve (1) that insulates the waste water line.

 Heater Elements
 Figure 401/TASK 30-71-53-991-001

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