(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch 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.
(4) Make sure that strakes are installed on the inboard fan cowl doors of each propulsion system.
**ON A/C 151-199,
Subtask 71-13-11-860-052-A
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.
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(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch 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.
(4) Make sure that strakes are installed on the inboard and outboard fan cowl doors of each propulsion system.
R **ON A/C 301-399, 401-499,
Subtask 71-13-11-860-052-B
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) pushbutton switch 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.
(4) Make sure that strakes are installed on the inboard and outboard fan cowl doors of each propulsion system.
**ON A/C ALL
4. Procedure
_________
(Ref. Fig. 401/TASK 71-13-11-991-300)
Subtask 71-13-11-020-056
A. Remove filler plugs of the hoist points from the fan cowl door. Keep the filler plugs for installation when the task is complete.
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B. Installation of the Tooling
(1) Install the universal attach pads (15) in the hoist points on the fan cowl door (10).
(2) Attach the SLING - FAN COWL (RSE1113) to the universal attach pads (15).
(3) Install the THREAD PROTECTOR - COWL DOOR BOLT (RSE1117) (25) on each of the hinge bolt (20).
Subtask 71-13-11-420-050
C. Installation of the Fan Cowl Door
(1) Use the SLING - FAN COWL (RSE1113) (5) to lift the fan cowl door (10) and put it into position on the engine.
(2) Make sure the fan cowl door hinge is aligned with the pylon hinge fitting.
(3) Install the hinge bolts (20) and the washers (45) in the sequence that follows: Forward, center, rear. The bolt heads must point forward.
Subtask 71-13-11-080-057
D. Remove the thread protectors from the hinge bolts (20). Subtask 71-13-11-420-057
E. Installation of the Bolts and Nuts
(1) Install the washers (30) and the nuts (35) on the hinge bolts (20).
(2) Tighten the bolts finger tight and install new cotter pins (40). Subtask 71-13-11-869-065
F. Check Electrical bonding.
(1) Make sure that the resistance value (Ohmic) between the fan cowl door hinge and the pylon is correct (Ref. TASK 20-28-00-869-002).
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G. Removal of the Tooling
(1) Remove the SLING - FAN COWL (RSE1113) from the universal attach pads (15).
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