(2) Set the ARINC Reader to read the labels that follow:
- LABEL 331 Longitudinal Acceleration
- LABEL 332 Lateral Acceleration
- LABEL 333 Normal Acceleration.
(3) Examine the acceleration outputs for any signs of incorrect operation.
**ON A/C ALL
4. Fault Isolation_______________
A. Procedure
(1) If the acceleration outputs show any signs of incorrect fluctuations.
(2) Replace the ADIRU-2 (1FP2) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
「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 : ALL ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C271
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CES
(3) Swap the ADIRU-2 with the ADIRU-1 (change positions of ADIRU-1 and ADRIU-2), (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
NOTE : Step (3) is necessary because due to aircraft design it is
____ only possible to examine the ADIRU ARINC BUS 2 output when installed in the ADRIU-2 position.
(4) Do the test given in Para. 3.A.
(5) If the acceleration outputs show any signs of incorrect fluctuations, replace the second ADIRU-2 ADIRU-1 (1FP1) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
「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 : ALL ∞∞28-42-00∞∞∞∞∞∞∞∞∞∞Page C272
May 01/05R
CES **ON A/C 301-399,
TASK 28-42-00-810-849
FQIS - FQIC Channels Disagree
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, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- FQIC (3QT)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 28-42-34-000-001 Removal of the Fuel Quantity-Indicating Computer (FQIC) (3QT) AMM 28-42-34-400-001 Installation of the Fuel Quantity-Indicating Computer (FQIC) (3QT)
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).
「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 C273
May 01/05 CES
(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.
(4) Maintenance steps are not necessary if the three conditions that follow are all correct:
- the CHANNELS DISAGREE 3QT message is not shown
- the Engine/Warning Display FOB reads correctly (XXs not shown)
- the System Display fuel tank temperatures read correctly (XXs not shown).
4. Fault Isolation
_______________
A. If the CHANNELS DISAGREE 3QT message is shown in Para. 3.B.(3) replace the FQIC (3QT), (Ref. AMM TASK 28-42-34-000-001) and (Ref. AMM TASK 28-42-34-400-001).
NOTE : Make sure that the FQIC to be installed is of the same type as
____ that removed. (Simmons Precision - Sextant Avionique).
「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 C274
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