(2) After the subsequent flight, make sure that the fault does not
 continue.

 TASK 38-31-00-810-811

 Lav X Flush Closed Limit Switch Failure
 1. Possible Causes
_______________
 - wiring

 - Limit Switch

 - Flush Valve

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 38-31-00-710-009 Operational Test of the Toilet Unit AMM 38-31-00-740-001 BITE Test of the Vacuum Toilet System AMM 38-31-57-000-001 Removal of the Flush Valve AMM 38-31-57-400-001 Installation of the Flush Valve AMM 38-31-57-820-001 Adjustment of the Open and Close Limit Switches ASM 38-31/14 38-31-00-991-001 Fig. 201
 3. Fault Confirmation
__________________
 A. Test
 (1) Do a test of the vacuum toilet system (Ref. AMM TASK 38-31-00-710-009).
 B. Do the bite test (Ref. AMM TASK 38-31-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives a different maintenance message, you can find the related trouble shooting procedure in the applicable Page Block 101.
 B. If the operational test is not satisfactory:
 - Refer to the bite test last leg or previous legs report page. (Ref. Fig. 201/TASK 38-31-00-991-001)
 (1) If the LAST LEG or PREVIOUS LEGS REPORT LEG give no maintenance message:

 - Refer to the trouble shooting data page.

 (2) If the TROUBLE SHOOTING DATA page gives the maintenance message LAV X FLUSH V CLOSED LIM SW:

 - do check and repair the wiring between the:
 - FCU connector J3/D / J3/F and limit switch closed (Ref. ASM 38-31/14).

 (3) If the wiring is ok:

 - do a check and adjust the related Limit Switch (Ref. AMM TASK 38-31-57-820-001).

 (4) If the fault continues:

 - replace the Flush Valve, (Ref. AMM TASK 38-31-57-000-001) and (Ref. AMM TASK 38-31-57-400-001).
 C. Test
 (1) Do the test as given in paragraph 3. A. to check the correct
 operation

 (2) After the subsequent flight, make sure that the fault does not
 continue.

 TASK 38-31-00-810-812

 Fault in the Flush Control Unit (FCU)
 1. Possible Causes
_______________
 - cable connections

 - Flush Control Unit (FCU)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 38-31-00-710-009 Operational Test of the Toilet Unit
 AMM 38-31-00-740-001 BITE Test of the Vacuum Toilet System
 AMM 38-31-12-000-001 Removal of the Flush Control Unit
 AMM 38-31-12-400-001 Installation of the Flush Control Unit
 38-31-00-991-001 Fig. 201

 3. Fault Confirmation
__________________
 A. Test
 (1) Do a test of the vacuum toilet system (Ref. AMM TASK 38-31-00-710-009).
 B. Do the bite test (Ref. AMM TASK 38-31-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives a different maintenance message, you can find the related trouble shooting procedure in the applicable Page Block 101.
 B. If the operational test does mot operate:
 - Refer to the bite test last leg or previous legs report page. (Ref. Fig. 201/TASK 38-31-00-991-001)
 (1) If the LAST LEG REPORT or PREVIOUS LEG gives the maintenance message LAV X FCU:

 - refer to the TROUBLE SHOOTING DATA page.

 (2) If the fault continues:

 - do a check of the cable connections to the FCU and from the FCU to the assembly components.

 (3) If the fault continues:

 - replace the Flush Control Unit (FCU), (Ref. AMM TASK 38-31-12-000-001) and (Ref. AMM TASK 38-31-12-400-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 151-199, ∞∞38-31-00∞∞∞∞∞∞∞∞∞∞Page 222
 Aug 01/04 CES

 C. Test

 (1) Do the test as given in paragraph 3. A. to check the correct operation.

 (2) After the subsequent flight, make sure that the fault does not continue.
　
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