Vacuum Generator Failure
 1. Possible Causes
_______________
 - GENERATOR-VACUUM (37MG)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 23-73-00-740-010
R AMM 38-31-00-710-009 AMM 38-31-00-740-001 AMM 38-31-64-000-001 AMM 38-31-64-400-001 38-31-00-991-001-A
3. Fault Confirmation
__________________
R A. Operational Test Interface and Power-Up Test of the Cabin Intercommunication Data System (CIDS) via the CFDSOperational Test of the Toilet UnitBITE Test of the Vacuum Toilet SystemRemoval of the Vacuum Generator 37MGInstallation of the Vacuum Generator 37MGFig. 201A
R (1) Do a test of the toilet unit (Ref. AMM TASK 38-31-00-710-009).
R NOTE : It is only necessary to do this operational test of the toilet
____ R unit if the failure occurs on ground (flight phase 1 = PRE R FLIGHT). R On ground the vacuum generator can be enabled after an R overheat condition.
R B. Tests
R (1) Do the CIDS Interface and Power-Up Test (Ref. AMM TASK 23-73-00-740-R 010).
R (2) Do the procedure to get access to the CFDS SYSTEM REPORT/TEST menu R PAGE (Ref. AMM TASK 38-31-00-740-001).

 4. Fault Isolation
_______________

 (Ref. Fig. 201A/TASK 38-31-00-991-001-A)
 A. If the test gives a different maintenance message, you can find the related trouble shooting procedure in the applicable Page Block 101.
R (1) AFTER FLIGHT:
R

R (a) If the LAST/PREVIOUS LEGS Report gives the maintenance message
R VACU GEN (37MG):

R (b) Go to the CIDSx-TOILET SYS STATUS page:
R If the status page gives the maintenance message VACU GENERATOR:
R DISABLED
R and VACU GEN OVHT: YES
R

R (c) Go to the FAP:
R If the FAP gives the maintenance message VACUUM SYSTEM DISABLED
R ON GROUND:
R

 - replace the GENERATOR-VACUUM (37MG), (Ref. AMM TASK 38-31-64-000-001) and (Ref. AMM TASK 38-31-64-400-001).
R (2) If the aircraft is on ground (flight phase 1 = PRE FLIGHT):

R (a) If the CIDSx-TOILET SYS STATUS page gives the maintenance
R messages:
R VACU GENERATOR: DISABLED and
R VACU GEN OVHT: YES

R (b) If the FAP gives the maintenance message VACUUM SYSTEM DISABLED
R ON GROUND:
R - push the toilet flush switch in one of the lavatories.

R NOTE : On ground the vacuum generator can be enabled after an

____ R overheat condition.
R To reset the messages on the status page and at the FAP: R - Do the CIDS Interface and Power-Up Test again.
 B. 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.

 「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 : 106-149, 301-399, 401-499, ∞∞38-31-00∞∞∞∞∞∞∞∞∞∞Page 259
 Aug 01/05 CES

 TASK 38-31-00-810-840

 115 Volt Failure
 1. Possible Causes
_______________
 - RELAY-MOTOR START (36MG)

 - RELAY-FAN PHASE OFF (38MG)

 - GENERATOR-VACUUM (37MG)

 - AIRCRAFT WIRING

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ESPM 204650
 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 38-31-36-000-001 Removal of the Motor Start Relay (36MG)
 AMM 38-31-36-400-001 Installation of the Motor Start Relay (36MG)
 AMM 38-31-64-000-001 Removal of the Vacuum Generator 37MG
 AMM 38-31-64-400-001 Installation of the Vacuum Generator 37MG
 ASM 38-31/01
 38-31-00-991-001-A Fig. 201A

 3. Fault Confirmation
__________________
 A. Do a test of the vacuum toilet system (Ref. AMM TASK 38-31-00-710-009).
 B. Do the procedure to get access to the CFDS SYSTEM REPORT/TEST menu PAGE (Ref. AMM TASK 38-31-00-740-001).
 4. Fault Isolation
_______________
 (Ref. Fig. 201A/TASK 38-31-00-991-001-A)
 A. If the test gives a different maintenance message, you can find the related trouble shooting procedure in the applicable Page Block 101.
 (1) If the LAST/PREVIOUS LEGS Report gives the maintenance message VACU GEN (37MG) SUPPLY: and The FAP gives the maintenance message VACUUM SYSTEM DISABLED ON GROUND:
　
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