R . Replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001)
R and (Ref. AMM TASK 27-93-34-400-001).
R - If the values B1 and/or B2 only are more than 0 deg. plus or
R minus 0.1 deg. :
R . Replace the ELAC-2 (2CE2) (Ref. AMM TASK 27-93-34-000-001)
R and (Ref. AMM TASK 27-93-34-400-001)
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R - If the values (A1 and B1) and/Or (A2 and B2) are more than 0
R deg. plus or minus 0.1 deg.:
R . Do a check of the adjustment of the pedal position
R transducer unit (25CE1, 25CE2) (Ref. AMM TASK 27-21-00-820-
R 003).
R - Close the circuit breakers 15CE1, 16CE1, 15CE2 and 16CE2.
R - Do steps (b) and (c) 3_ again and make sure that the pedal
R angle value is correct for CHAN 1 and CHAN 2, if not do step
R 6_.
R 4_ If the ANGCSG value is not correct for the BSCU CHAN 1 and/or
R CHAN 2, do step 6_.
R 5_ If the difference between the RVDTCOM CHAN 1 (value A) and
R RVDTCOM CHAN 2 (value B) is not correct, do the step 6_.
R 6_ Replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and
R (Ref. AMM TASK 32-42-34-400-001).
R 7_ Do the steps (a) thru (c) again and make sure that all the
R parameters are correct for the CHAN 1 and the CHAN 2, then do
R the step 8_.
R 8_ Return the aircraft to service and make a record in the
R aircraft log book to monitor the NWS during the next taxi
R operation and to assess the aircraft lateral deviation, if
R any, using the rudder trim input.
R - On the overhead panel, on the FLT CTL panel 23VU, make sure
R that the ELAC1 pushbutton switch is pushed (FAULT and OFF
R legends off).
R - On the overhead panel, on the FLT CTL panel 24VU, make sure
R that the ELAC2 pushbutton switch is pushed (FAULT and OFF
R legends off).
R - Refer to the Close-Up part (5.A) and do the relevant steps.
R (3) If the steering angle on the MCDU is correct, do a check of the
R servovalve.
R (a) If the Fault Confirmation test was to be done only with the
R taxiway procedure, put the aircraft in the necessary
R configuration to let the nosewheels move freely to the left or
R the right :
R 1_ If the check is to be done with the nosewheels on ground, do
R these steps:
R NOTE : You will need two 1.2 m (3.93 ft.) square steel plates.____
R - Position a steel plate in front of the nosewheels.
R - Apply a thick layer of COMMON GREASE (Material No. 04-004)
R to the upper surface of the steel plate.
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R - Put the other steel plate on the top of the greased steel
R plate.
R - Move the aircraft and position the nosewheels on the greased
R steel plates (Ref. AMM TASK 09-10-00-584-002).
R NOTE : The procedure that uses the steel plates cannot be____
R accurate if the friction between the steel plates does
R not let the nosewheels move freely.
R 2_ If the check is to be done with the nosewheels off ground, do
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本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 2(126)
