(3) Remove the warning notice(s).
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TASK 72-23-00-000-025 Removal of the Mid Acoustical Panels
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
No specific access platform 1 m (3 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
72-21-00-000-005 Removal of the Spinner Front Cone 72-21-00-000-006 Removal of the Spinner Rear Cone 72-21-00-000-007 Removal of the Fan Rotor Blades 72-23-00-991-302 Fig. 403
3. Job Set-up
__________ Subtask 72-23-00-941-073
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
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(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 72-23-00-010-084
B. Get Access
(1) Put an access platform in position at the front of the engine.
(2) Remove the spinner front cone (Ref. TASK 72-21-00-000-005).
(3) Remove the spinner rear cone (Ref. TASK 72-21-00-000-006).
(4) Temporarily mark each fan blade from 1 to 36.
(5) Remove 3 consecutive fan blades (Ref. TASK 72-21-00-000-007). To compensate for imbalance caused by the removal of 3 blades, it is recommended to remove 3 blades 180 degrees opposed to those previously removed.
4. Procedure
_________ (Ref. Fig. 403/TASK 72-23-00-991-302) Subtask 72-23-00-020-061 R A. Remove the Mid Acoustical Panels as follows: CAUTION : DO NOT EXCEED THE SPEED OF 200 RPM TO UNTORQUE AND LOOSEN ALL
_______ ACOUSTICAL PANEL SCREWS BY USING PNEUMATIC OR ELECTRICAL SCREW DRIVERS.
R (1) Remove the short screws (100) and the long screws (101) which attach R the mid acoustical panels (110).
NOTE : If one screw is found untorqued, it must be discarded and
____
replaced for re-installation.
(2) Disengage panels from case and remove.
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R Mid Acoustical Panel Figure 403/TASK 72-23-00-991-302
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TASK 72-23-00-400-025
Installation of the Mid Acoustical Panels
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
No specific access platform 1 m (3 ft. 3 in.)
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2101 USA MIL-T-5544 graphite grease (Ref. 70-30-00) R
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 71-00-00-000-042 Removal of the Power Plant 72-21-00-400-005 Installation of the Spinner Front Cone 72-21-00-400-006 Installation of the Spinner Rear Cone 72-21-00-400-007 Installation of the Fan Rotor Blades
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