L/R XFR OPEN ECAM Warning A320
WARNING: OBEY THE FUEL SAFETY PROCEDURES.
WARNING: WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT: EN60079, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes:
-VALVE-TRANSFER, L FWD SPAR (27QM)
-VALVE-TRANSFER, L REAR SPAR (28QM)
-VALVE-TRANSFER, R FWD SPAR (29QM)
-VALVE-TRANSFER, R REAR SPAR (30QM)
-if the power-on BITE test of the Fuel Quantity Indicating Computer (FQIC) is stopped before the BITE test is completed
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. 28-15-00-810-803-A | Intercell XFR VALVE 27QM/70QM/9QP (Left Forward) Fault — Stays Closed When The Fuel In The Inner-cell Is At Low Level |
| Ref. 28-15-00-810-804-A | Intercell XFR Valve 28QM/71QM/11QP (Left Rear) Fault — Stays Closed When The Fuel In The Inner-cell Is At Low Level |
| Ref. 28-15-00-810-805-A | Intercell XFR Valve 29QM/72QM/10QP (Right Forward) Fault — Stays Closed When The Fuel In The Inner-cell Is At Low Level |
| Ref. 28-15-00-810-806-A | Intercell XFR Valve 30QM/73QM/12QP (Right Rear) Fault — Stays Closed When The Fuel In The Inner-cell Is At Low Level |
| Ref. 28-15-00-810-807-A | Intercell XFR Valve Failure (Left Forward) — Open When Fuel Not Low Level |
| Ref. 28-15-00-810-808-A | Intercell XFR Valve Failure (Left Rear) — Open When Fuel Not Low Level |
| Ref. 28-15-00-810-809-A | Intercell XFR Valve Failure (Right Forward) — Open When Fuel Not Low Level |
| Ref. 28-15-00-810-810-A | Intercell XFR Valve Failure (Right Rear) — Open When Fuel Not Low Level |
| Ref. AMM 24-41-00-861-002 | Energize the Aircraft Electrical Circuits from the External Power |
| Ref. AMM 24-41-00-862-002 | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| Ref. AMM 28-15-00-740-002 | Functional (BITE) Test of the Intercell Transfer Valves |
| Ref. AMM 28-42-00-740-001 | Status Report (BITE) |
| Ref. AMM 31-60-00-860-001 | EIS Start Procedure |
| Ref. AMM 31-60-00-860-002 | EIS Stop Procedure |
3. Fault Confirmation
SUBTASK 28-15-00-865-082-A
A. Table of the circuit breakers used in this procedure:
| PANEL | DESIGNATION | FIN | LOCATION |
| 49VU | FUEL/FQI/CHAN/1 | 1QT | A13 |
| 121VU | FUEL/FQI/CHANNEL/1 AND 2 | 8QT | L26 |
| 121VU | FUEL/FQI/CHAN/2 | 2QT | M27 |
SUBTASK 28-15-00-710-086-A
B. Test
(1) Read the Technical Follow-Up (TFU) (Ref. TFU 28.15.00.003).
NOTE: This fault can occur if the power-on BITE test of the Fuel Quantity Indicating Computer (FQIC) is stopped before the BITE test is completed.
(a) Make sure that there is a minimum of 1500 kg fuel in the wing-tank inner-cell.
NOTE: This lets the FQIC do a power-on BITE test of the Intercell Transfer Valves (ICTV) and the related Level Sensors. It is recommended this test is done after a refuel of the aircraft.
(2) If the Electronic Centralized Aircraft Monitoring (ECAM) display unit is not energized:
(a) Energize the aircraft electrical circuits from the external power Ref. AMM 24-41-00-861-002.
(b) Do the EIS start procedure (ECAM only) Ref. AMM 31-60-00-860-001.
(c) On the ECAM control panel, push the FUEL P/BSW.
(d) On the ECAM System Display (SD), make sure that the FUEL page shows.
(e) Make sure that the Refuel/Defuel panel (800VU) is closed and the aircraft is not in the Refuel/Defuel mode.
(3) Reset the FQIC as follows:
(a) Open, safety and tag these circuit breakers:
— 1QT
— 2QT
— 8QT.
(b) Make sure that the Fuel Quantity Indicator (FQI) for the related cell shows the X’s in amber color.
(c) After 30 seconds close these C/Bs:
— 1QT
— 2QT
— 8QT.
(d) Examine the fuel SD page and make sure that:
— the FQI indication shows the fuel quantity
— the ICTV’s show that the XFR valve has moved from the closed to open and then back to the closed position.
NOTE: There will be a small transfer of fuel (approximately 10-20 kg) from the outer cells to the inner cells when the transfer valves operate.
(e) If there is no fuel transfer, do Para 4. step (3).
(4) If there is fuel transfer:
(a) Do the functional (BITE) test of the intercell XFR valves Ref. AMM 28-15-00-740-002.
(b) Do the FLSCU status report (BITE) test Ref. AMM 28-42-00-740-001.
4. Fault Isolation
SUBTASK 28-15-00-810-092-A
A. Procedure
(1) Examine the Fuel Level Sensing System (FLSS) STATUS page. Look for one or more messages that follow:
— XFR valve 27QM/70QM/9QP
— XFR valve 28QM/71QM/11QP
— XFR valve 29QM/72QM/10QP
— XFR valve 30QM/73QM/12QP.
(2) If no messages are shown in step (1), go to Para 5.
(3) If one or more messages are shown, do the applicable procedure that follows:
— If the VALVE-TRANSFER, L FWD SPAR (27QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-807 for intercell XFR valve failure (Left Forward)
— If the VALVE-TRANSFER, L REAR SPAR (28QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-808 for intercell XFR valve failure (Left Rear)
— If the VALVE-TRANSFER, R FWD SPAR (29QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-809 for intercell XFR valve failure (Right Forward)
— If the VALVE-TRANSFER, R REAR SPAR (30QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-810 for intercell XFR valve failure (Right Rear).
(4) If a transfer valve does not operate, do the applicable procedure that follows:
— If the VALVE-TRANSFER, L FWD SPAR (27QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-803 for intercell XFR valve fault (Left) Forward)
— If the VALVE-TRANSFER, L REAR SPAR (28QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-804 for intercell XFR valve fault (Left Rear)
— If the VALVE-TRANSFER, R FWD SPAR (29QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-805 for intercell XFR valve fault (Right Forward)
— If the VALVE-TRANSFER, R REAR SPAR (30QM) is shown:
Do the troubleshooting procedure Ref. TSM TASK 28-15-00-810-806 for intercell XFR valve fault (Right Rear).
5. Close-up
SUBTASK 28-15-00-942-050-A
A. Put the Aircraft Back to its Initial Configuration
(1) Do the EIS stop procedure Ref. AMM 31-60-00-860-002.
(2) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(3) De-energize the aircraft electrical circuits Ref. AMM 24-41-00-862-002.
(4) Make sure that the work area is clean and clear of tools and other items.
