Subtask 27-24-00-860-050
C. Aircraft maintenance configuration
(1) Pressurize the aircraft hydraulic systems (Ref. TASK 29-23-00-863-001) (Ref. TASK 29-24-00-863-001) (Ref. TASK 29-10-00-863-003).
(2) On the HYD section of the maintenance panel 50VU : - release the LEAK MEASUREMENT VALVES/B and LEAK MEASUREMENT VALVES/Y pushbutton switches (the OFF legends of these pushbutton switches come on).
(3) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.
Subtask 27-24-00-941-050
D. Safety Precautions
(1) Put warning notice(s) on the pedals (CAPT and F/O) to tell persons not to operate them.
(2) Put warning notice(s) on the panel 110VU to tell persons not to use the rudder trim.
4. Procedure_________
Subtask 27-24-00-210-050
A. Check of the Rudder Servo Controls and Hinge Bearings for General Condition
(1) Make sure that the rods and bellcranks are in the correct condition.
(2) Make sure that the liner is in the correct position between the attachment hardware of the bearings (no migration of the liner).
R R R NOTE : The liner is a coat of teflon between the bearing case and the____ ball. It lets the ball turn with a minimum of friction (self lubricating).
R R R If you can see the liner, replace the related servo control (Ref. TASK 27-24-51-000-001) (Ref. TASK 27-24-51-400-001) or hinge arm end fitting (1 to 5 or 7) (Ref. TASK 55-36-41-000-001) (Ref. TASK 55-36-41-400-001) or hinge bearing No. 6 (Ref. TASK 55-46-11-000-001) (Ref. TASK 55-46-11-400-001).
Subtask 27-24-00-220-050
B. Check of the Rudder Trailing Edge Play
NOTE : For monitoring and follow up of the play at the rudder trailing
____ edge, it is recommended that the operator record in its own documentation the values measured.
(1)
Do a check of the rudder trailing edge play (Ref. TASK 27-24-00-200-002).
(2)
For each servo control (Green, Yellow or Blue hydraulic system pressurized), if the distance is more than 16 mm (0.6299 in.) between the two positions:
(a)
Replace the related rudder servo control (Ref. TASK 27-24-51-000-001) (Ref. TASK 27-24-51-400-001).
(b)
Do a check of the rudder trailing edge play (Ref. TASK 27-24-00-200-002).
(c)
For each servo control (Green, Yellow or Blue hydraulic system pressurized), if the distance stays more than 16 mm (0.6299 in.), do a check of the related servo control fitting (Ref. TASK 27-24-51-200-001).
(d)
Do a check of the rudder trailing edge play (Ref. TASK 27-24-00-200-002).
(e)
For each servo control (Green, Yellow or Blue hydraulic system pressurized), if the distance stays more than 16 mm (0.6299 in.), do a check of the related rudder fitting (Ref. TASK 27-24-51-200-001).
NOTE : This 16 mm (0.6299 in.) value includes 8 mm (0.3149 in.)
____ of surface bending as the result of the 30 daN (67.4426 lbf) force.
1EFF : ALL 1 27-24-00Page 604 1 1 Aug 01/05R 1 1 1CES 1
5. Close-up________
R
Subtask 27-24-00-942-052
R A. Put the aircraft back to its initial configuration
(1) On the HYD section of the maintenance panel 50VU : - push the LEAK MEASUREMENT VALVES/G and LEAK MEASUREMENT VALVES/Y pushbutton switches (the OFF legends of these pushbutton switches go off).
(2) Depressurize the aircraft hydraulic systems (Ref. TASK 29-23-00-864-001) (Ref. TASK 29-24-00-864-001) (Ref. TASK 29-10-00-864-003).
(3) Remove the warning notice(s).
(4) Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 27-24-00-410-050
R B. Close Access
(1) Close the access doors 325BL, 325BR, 325CL, 325CR, 325DL, 325DR, 325EL, 325ER.
(2) Remove the access platform(s).
Subtask 27-24-00-862-052
R C. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
R TASK 27-24-00-200-002
R Check of the Rudder Trailing Edge Play
R WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING_______
R GEAR.
R WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU_______
R START A TASK ON OR NEAR:
R - THE FLIGHT CONTROLS
R - THE FLIGHT CONTROL SURFACES
R - THE LANDING GEAR AND THE RELATED DOORS
R - COMPONENTS THAT MOVE.
R 1. Reason for the Job__________________
R Self Explanatory
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