and 2QT).
(2) When the BITE test is complete (XX shown on the FQI for 35 seconds and the display has no dashes for 60 seconds) set the MCDU to:
(a) CFDS
(b) SYSTEM REPORT/TEST
(c) FUEL
(d) FQIS STATUS.
(3) Examine the FQIS STATUS page to see if it agrees with the initial defect.
「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 : 301-399, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C278
May 01/05 CES
(4) Maintenance steps are not necessary if the three conditions that follow are all correct:
- the L DOUBLE PROBE FAILURE message is not shown
- the Engine/Warning Display FOB reads correctly (dashes or XXs not shown)
- the System Display Left Wing fuel tank FQI reads correctly (dashes or XXs not shown).
NOTE : The CLASS 1 double probe failure message is given/shown when
____ certain pairs of probes fail which individually are CLASS 3. If a pair of these related probes fail there is a cockpit effect, either degraded or failed. More data reference Double Probe Failure can be got from P. Block 301.
4. Fault Isolation
_______________
A. If the L DOUBLE PROBE FAILURE message is shown in Para. 3.B.(3):
(1) Examine the FQIS STATUS page for Left Wing Tank CLASS 3 probe failures (will be more than one).
(2) Make a note of the Left Wing Tank CLASS 3 probe failures shown.
(3) Go to P. Block 101 CFDS Index for the related TASK numbers of the probes identified in Step (2).
(4) Troubleshoot the identified probes.
「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 : 301-399, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C279
May 01/05R
CES
TASK 28-42-00-810-855
Fuel Quantity Probes, Right Wing Tank Double Probe Failure WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Possible Causes
_______________
- Right Wing Tank CLASS 3 probe failures (will be more than one)
2. Job Set-up Information
______________________
Not Applicable
3. Fault Confirmation
__________________
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/FQI/CHAN/1 1QT A13 121VU FUEL/FQI/CHAN/2 2QT M27
B. To keep the number of computer removals to a minimum do the Power On BITE test of the FQI system as follows:
(1) Apply electrical power to the FQI system. OR (if the FQIS is already powered). Reset the FQIC. (Open, then after 10 seconds, close the two CBs 1QT
and 2QT).
(2) When the BITE test is complete (XX shown on the FQI for 35 seconds and the display has no dashes for 60 seconds) set the MCDU to:
(a) CFDS
(b) SYSTEM REPORT/TEST
(c) FUEL
(d) FQIS STATUS.
(3) Examine the FQIS STATUS page to see if it agrees with the initial defect.
「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 : 301-399, ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C280
May 01/05R
CES
(4) Maintenance steps are not necessary if the three conditions that follow are all correct:
- the R DOUBLE PROBE FAILURE message is not shown
- the Engine/Warning Display FOB reads correctly (dashes or XXs not shown)
- the System Display Right Wing fuel tank FQI reads correctly (dashes or XXs not shown). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油3(89)
