W DOC AIRBUS | TSM A320F

Blue Hydraulic Reservoir Fault: #quot#BLUE RSVR#quot#

TASK 29-12-00-810-824-A
Blue Hydraulic Reservoir Fault: "BLUE RSVR"

1. Possible Causes
  • 1853VT
  • 1862VT
  • wiring
  • terminal module 2749VT
  • 45VC
  • terminal module 1853VT
  • SDAC-1 [1WV1]
  • terminal block 1853VT
  • resistor 69WV
  • resistor 71WV
  • terminal module 2498VT
  • 118VC
  • terminal module 1862VT
  • SDAC-2 [1WV2]
  • terminal block 1862VT
  • resistor 70WV
  • resistor 72WV
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
AMM 24-41-00-861-002
Energize the Aircraft Electrical Circuits from the External Power
AMM 24-41-00-862-002
De-energize the Aircraft Electrical Circuits Supplied from the External Power
AWM 315412
AMM 31-55-34-000-001
Removal of the SDAC
AMM 31-55-34-400-001
Installation of the SDAC
3. Fault Confirmation
Subtask 29-12-00-860-081-A
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
   (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-55-34-400-001.
   (3) On MCDU panel:
     (a) Push the line key adjacent to the CFDS indication.
     (b) Push the line key adjacent to the LAST LEG REPORT.
     (c) If there is CFDS message BLUE RSVR, go to Para 3.B.
Subtask 29-12-00-700-053-A
B. Fault conformation
   (1) For SDAC 1, do a check of the voltage between terminal block 1853VT , pin 32J and terminal block 1853VT , pin 32F.
   (2) If the voltage is between 1.0VDC and 4.1VDC, go to Para. 4.A.
   (3) For SDAC 2, do a check of the voltage between terminal block 1862VT , pin 33J and Terminal Block 1862VT , pin 33F.
   (4) If the voltage is between 1.0VDC and 4.1VDC, go to Para. 4.B.
4. Fault Isolation
Subtask 29-12-00-810-086-A
A. Do a check of, and replace and repair as necessary:
AWM 315412
   (1) The wiring between:
  • The terminal module 2749VT connector 33/E and the connector 45VC .
  • The connector 45VC , pin 27 and the terminal module 1853VT connector 33/K.
  • The terminal module 1853VT connector 33/E and the terminal module 1853VT connector 33/A.
  • The terminal module 1853VT connector 33/F and the terminal module 1853VT connector 32/B.
  • The terminal module 1853VT connector 32/A and the terminal module 1853VT connector 32/E.
    Check the pins of the connectors to make sure they are correctly attached and not bent, damaged or contaminated.
   (2) The wiring between SDAC-1 [1WV1] AB/11E and terminal block 1853VT connector 32/F.
Check the pins of the connector and the SDAC-1 [1WV1] to make sure they are correctly attached and not bent, damaged or contaminated.
   (3) The wiring between SDAC-1 [1WV1] AB/11F and terminal block 1853VT connector 32/J.
Check the pins of the connector and the SDAC-1 [1WV1] to make sure they are correctly attached and not bent, damaged or contaminated.
   (4) The resistor 69WV and resistor 71WV connected to terminal block 1853VT .
NOTE: The resistor 69WV has resistance 24 kiloohms. The resistor 71WV has resistance 62 kiloohms.
   (5) The ground signal on terminal block 1853VT pins 32/E, 32/J and 32/K.
   (6) Replace the SDAC-1 [1WV1] AMM 31-55-34-000-001 and AMM 31-55-34-400-001.
Subtask 29-12-00-810-087-A
B. Do a check of, and replace and repair as necessary:
AWM 315412
   (1) The wiring between:
  • The terminal module 2498VT connector 4/R and the connector 118VC .
  • The connector 118VC , pin 39 and the terminal module 1862VT connector 34/K.
  • The terminal module 1862VT connector 34/E and the terminal module 1862VT connector 34/A.
  • The terminal module 1862VT connector 34/F and the terminal module 1862VT connector 33/B.
  • The terminal module 1862VT connector 33/A and the terminal module 1862VT connector 33/E.
    Check the pins of the connectors to make sure they are correctly attached and not bent, damaged or contaminated.
   (2) The wiring between SDAC-2 [1WV2] AB/11E and terminal block 1862VT connector 33/F.
Check the pins of the connector and the SDAC-2 [1WV2] to make sure they are correctly attached and not bent, damaged or contaminated.
   (3) The wiring between SDAC-2 [1WV2] AB/11F and terminal block 1862VT connector 33/J.
Check the pins of the connector and the SDAC-2 [1WV2] to make sure they are correctly attached and not bent, damaged or contaminated.
   (4) The resistor 70WV and resistor 72WV connected to terminal block 1862VT .
NOTE: The resistor 70WV has resistance 24 kiloohms. The resistor 72WV has resistance 62 kiloohms.
   (5) The ground signal on terminal block 1862VT pins 33/E, 33/J and 33/K.
   (6) Replace the SDAC-2 [1WV2] AMM 31-55-34-000-001 and AMM 31-55-34-400-001.
5. Close-up
Subtask 29-12-00-860-079-A
A. De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.
[Rev.8 from Aug 2018] 2026.04.04 04:29:24 UTC
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