R (2) Do a check of the applicable fuel tanker or fuel hydrant hose end
R pressure.
R (a) If the fuel pressure is more than 50psi (3.45bar):
R
R - change the fuel pressure if possible or
R
R - get another source of fuel supplied at the correct pressure.
R NOTE : If the fuel tanker or fuel hydrant hose end pressure is____
R more than the maximum safe pressure it can cause:
R - a refuel valve that has been commanded to shut, to stay
R open
R - a overpressure protector (burst disc) to operate
R - damage to the refuel gallery.
R (3) Do a check of the related L(R) wing-tank refuel valve 7QU(8QU) as
R follows:
R (a) Remove the applicable refuel valve 7QU(8QU) (Ref. AMM TASK 28-25-
R 51-000-001).
R (b) Do a visual inspection of the refuel valve 7QU(8QU), valve
R position.
R 1 If the valve is (stays) in the open position, replace the_
R VALVE-REFUEL, L WING TK (7QU) (VALVE-REFUEL, R WING TK (8QU))
R (Ref. AMM TASK 28-25-51-000-001) and (Ref. AMM TASK 28-25-51-
R 400-001).
R 2 If the valve is in the closed position or if the valve is_
R replaced in step 1_, do an operational test of the applicable
R wing-tank refuel valve 70QU(8QU) (to see if it can open and
R close) (Ref. AMM TASK 28-25-00-710-003).
R 3 If there is any malfunction of the refuel valve 7QU(8QU)_
R and/or related sub-systems, refer to the Troubleshooting Fault
R Symptoms List, for the related Task number, and do the
R necessary troubleshooting.
R (4) Do an Inspection of the Tank Venting System items that follow (Ref.
R AMM TASK 28-12-00-200-001):
R (a) The VALVE-FLOAT VENT, L WING TK INR (16QM) (VALVE-FLOAT VENT, R
R WING TK INR (17QM)) and replace, if necessary, (Ref. AMM TASK 28-
R 12-43-000-002) and (Ref. AMM TASK 28-12-43-400-002).
R (b) The L(R) wing-tank vent-pipe/duct and replace, if necessary, all
R sections that are unserviceable (example, damaged or blocked).
R (5) Replace the L(R) wing-tank (inner-cell) overpressure protector (Ref.
R AMM TASK 28-12-46-000-001) and (Ref. AMM TASK 28-12-46-400-001).
201-299, 401-499, Aug 01/05 CES
R (6) If, when all the tests and inspections are complete:
R
R - the cause(s) of the operation (broken/damaged) of the overpressure
R protector installed on access panel 540HB(640HB) has been found
R (and all the related unserviceable LRUs replaced) refuel the
R aircraft and return it to service
R
R - no cause for the operation (broken/damaged) of the overpressure
R protector access panel 540HB(640HB) can be seen (or found) send
R AIRBUS a report of the incident.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-12-00∞∞∞∞∞∞∞∞∞∞Page 222
201-299, 401-499, Aug 01/05 CES
R **ON A/C 301-399,
R TASK 28-12-00-810-806
R Fuel - Tank Venting, L(R) Wing Tank Overpressure Protector Broken (Not Coded R With FIN) Installed on the Access Panel 540PB(640PB), Type 27B
R WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
R CAUTION : DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM SAFE PRESSURE
_______ R OF 50psi (3.45bar).
R 1. Possible Causes
_______________
R - VALVE-REFUEL, L WING TK (7QU)
R - VALVE-REFUEL, R WING TK (8QU)
R - VALVE-FLOAT VENT, LEFT WING (212QM)
R - VALVE-FLOAT VENT, RIGHT WING (213QM)
R - the refuel supply pressure is above the safe limit
R - L(R) wing-tank vent-pipe/duct
R - L(R) wing-tank overpressure protector
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本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油1(17)
