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78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
78-36-00-410-040 Closing of the Thrust Reverser Doors
R ESM 722302300008 72-23-00-991-303 Fig. 404
3. Job Set-up
__________
Subtask 72-23-00-860-059
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the access platform is in position.
Subtask 72-23-00-010-099
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Make sure that the thrust reverser doors are open (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
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Subtask 72-23-00-040-068
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
4. Procedure
_________
(Ref. Fig. 404/TASK 72-23-00-991-303)
Subtask 72-23-00-420-062
A. Install the Aft Acoustical Panels as follows (typical, any panel):
CAUTION : COATING SCREWS IS MANDATORY.
_______
NOTE : The 12 aft acoustical panels are attached both to the fan inlet
____ case and to the T/R adapter ring, at their aft end.
R (1) Apply a layer of graphite grease (Material No. CP2101) to the threads R of all the screws that attach the acoustical panels and to contact R faces below the screw heads. R
R PRE SB 72-071
R (2) Visually inspect the aft acoustical panel cup (Ref. TASK 72-23-00-R 280-007).
R (3) If panel cup is found pierced (Ref. TASK 72-23-00-400-044).
R (4) Install the panel assy on the forward case, an attach it with seven screws (130).
R (5) Before the installation, do a visual inspection of the panel (140) R (Ref. TASK 72-23-00-210-004). Make sure that the two lateral bonded R seals are in position. Although it is not at this time mandatory to R obey the inspection criterion related to these bonded seals, we R recommended they are in position, in good condition and fully bonded R to the panel.
R (6) Put the panel (140), with its two bonded seals, on the fan case and R the T/R adapter ring. Attach it loosely with the seven screws (130).
CAUTION : DO NOT EXCEED THE SPEED OF 200 RPM TO APPROACH ALL
_______ ACOUSTICAL PANEL SCREWS BY USING PNEUMATIC OR ELECTRICAL SCREW DRIVERS.
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____ R panel.
R (7) Measure the self locking nut torque of each nut when you start to R tighten the screw.
R CAUTION : DO NOT EXCEED THE SPEED OF 200 RPM TO APPROACH ALL
_______ R ACOUSTICAL PANEL SCREWS BY USING PNEUMATIC OR ELECTRICAL R SCREW DRIVERS.
R NOTE : Whenever possible, start to torque with the screws in the
____ R center ot the acoustical panels.
R NOTE : Make sure that the screws are not damaged, replace them if
____ R necessary.
R (a) If the self locking nut torque is less than 4.5 lbf.in (0.05 R m.daN) (Ref. TASK 72-23-00-400-043).
R (b) If the self locking nut torque is within 4.5 lbf.in (0.05 m.daN) R and 31 lbf (0.35 m.daN), TORQUE the screws to between 66 and 75 R lbf.in (0.74 and 0.84 m.daN).
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