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

 Subtask 38-14-00-010-064
 B. Get Access
 (1)
 Put the adjustable access platform in position below the potable-water sercice-panel door (referred to as the service door) 171AL.

 (2)
 Open the service door 171AL.

 (3)
 Put the warning notice in position to tell persons:

 -Not to do the servicing of the potable water system.
 4. Procedure
_________
 (Ref. Fig. 201/TASK 38-14-00-991-001) Subtask 38-14-00-960-050
 A. Replacement of the Indication Lamp
 (Ref. Fig. 201/TASK 38-14-00-991-001)

 (1)
 Remove the cap (1) with the indication lamp (2) from the potable-water service panel 2023VU (3).

 (2)
 Remove the indication lamp (2) from the cap (1).

 (3)
 Put the new indication lamp (2) into the cap (1).

 (4)
 Install the cap (1) together with the new indication lamp (2) on the potable-water service panel 2023VU (3).

 (5)
 Torque the cap (1) to between 0.19 and 0.21 m.daN (16.81 and 18.58 lbf.in).

 Subtask 38-14-00-710-055
 B. Operational Test of the Indicator Light
 (Ref. Fig. 201/TASK 38-14-00-991-001)

 (1)
 Push and hold the cap (1) to test that the light comes ON.

 (2)
 Release the cap (1) to switch OFF the light.

 Potable Water Service-Panel
 Figure 201/TASK 38-14-00-991-001
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 1CES  1

 5. Close-up
________ Subtask 38-14-00-410-062
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access panel 171AL.

 (3)
 Remove the access platform(s).

 (4)
 Remove all the ground support equipment, the maintenance equipment, the standard and special tools and all other items.

 Subtask 38-14-00-862-058
 B. De-energize the ground service network
 (Ref. TASK 24-42-00-862-001).

 WATER DRAINING (DUMP) - ADJUSTMENT/TEST
_______________________________________
 TASK 38-14-00-710-001
 Operational Test of the Potable Water Drain-System
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific drain hose
 No specific access platform 1.0 m (3 ft. 3 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
12-15-38-613-001  Fill the Potable Water Tank System (Aircraft Electrical Power Available) 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 38-10-00-614-001 Pressurization of the Potable Water System from a Ground Air Supply
 3. Job Set-up
__________
 Subtask 38-14-00-861-050

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

 **ON A/C 001-049, 051-099, 101-105,

 Subtask 38-14-00-865-064
 B. Make sure that this(these) circuit breaker(s) is(are) closed: -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2000VU WATER SYSTEM - QUANT IND 1MA B01 2001VU WATER SYS - DRAIN 1MP D01
 **ON A/C 106-149, 201-299,
 Subtask 38-14-00-865-064-A
 B. Make sure that this(these) circuit breaker(s) is(are) closed: -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2000VU WATER SYS - QUANT IND 1MA B01 2001VU WATER SYS - DRAIN 1MP B05

R **ON A/C 151-199, 301-399, 401-499,
　
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