(4)
 Remove the access panels:

 (a) For the LH wing, remove the following panels:
 -571AB
 -573AB, 573BB, 573CB (Ref. TASK 57-51-37-000-002)
 -575AB, 575BB, 575CB, 575DB, 575EB, 575FB, 575GB (Ref. TASK 57-51-37-000-004).
 (b) For the RH wing, remove the following panels:
 -671AB
 -673AB, 673BB, 673CB (Ref. TASK 57-51-37-000-002)
 -675AB, 675BB, 675CB, 675DB, 675EB, 675FB, 675GB (Ref. TASK 57-51-37-000-004).
 4. Procedure
_________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 602/TASK 27-54-00-991-001)

 Flap System - Component Location
 Figure 602/TASK 27-54-00-991-001

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 27-54-00Page 606 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 301-399,

 (Ref. Fig. 602A/TASK 27-54-00-991-001-A)

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 603/TASK 27-54-00-991-002)
 **ON A/C 301-399,
 (Ref. Fig. 603A/TASK 27-54-00-991-002-A)
 **ON A/C ALL
 CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING
_______
 EDGE:

 -
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.

 -
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.

 -MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 27-54-00-210-050-A
 A. Inspection
 (1) Examine the Power Control Unit (PCU):
 (a)
 Make sure that the PCU is correctly installed.

 (b)
 Use a flashlight and a mirror to examine the external surfaces of the PCU for:

 -cracks
 -corrosion
 -signs of leakage
 -satisfactory surface protection.
 (c) Make sure that the Line Replaceable Units (LRU) are correctly installed. The LRUs are the:
 -
two valve blocks

 -
two inlet filters

R  Flap System - Component Location 
R  Figure 602A/TASK 27-54-00-991-001-A 
R 1EFF :  301-399,  1  27-54-00 Page 608 
1  1  May 01/04
 1  1
 1CES  1

 Steady Bearings and Torque Shaft - Component Location
 Figure 603/TASK 27-54-00-991-002

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 27-54-00Page 609 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1R Steady Bearings and Torque Shaft - Component Location R Figure 603A/TASK 27-54-00-991-002-A

R 1EFF : 301-399, 1 27-54-00Page 610 1 1 May 01/04 1 1 1CES 1

 -six solenoid valves
 -
two hydraulic motors

 -
two Pressure-Off Brakes

 -Feedback Position Pick-off Unit
 -Instrumentation Position Pick-off Unit.
 (2)
 Examine the torque shaft assemblies:

 (a)
 Make sure that the torque shaft assemblies are correctly installed and that the spring clip safeties the pin correctly.

 (b)
 Use a flashlight and a mirror to examine the torque shafts and the input joints for:

 -distortion
 -dents
 -cracks
 -corrosion
 -satisfactory surface protection.
 (c)
 Make sure that the connections between the torque shafts and the input joints are tight.

 (d)
 Do an inspection of the flange bolts for corrosion protection. If the corrosion protection is unsatisfactory, apply a new layer of STORAGE PRESERVATION (Material No. 15-007).

 (3)
 Examine the steady bearing assemblies:

 (a)
 Make sure that the steady bearing assemblies are correctly installed.

 (b)
 Use a flashlight and a mirror to examine the steady bearing assemblies for:

 -cracks
 -corrosion
 -satisfactory surface protection.

 (4)
 Examine the gearbox assemblies:

 NOTE : The gearbox assemblies are units filled with grease and are
____ not hermetically sealed units. It is normal for this grease to have some oil separation. The external surfaces of the gearbox may be moist with this oil as it is not a sealed unit. However, any separated oil in the unit that touches the grease will be changed back during operation. The oil separation will decrease during in-service operation until the lubricant is in
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 27-54-00Page 611 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 a condition that is stable. This will not cause damage to the unit.
　
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