(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.

 Subtask 78-36-42-010-054
 B. Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
 Subtask 78-36-42-040-052
 C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
 4. Procedure
_________
 (Ref. Fig. 401/TASK 78-36-42-991-301, 402/TASK 78-36-42-991-302, 403/TASK 78-36-42-991-303, 404/TASK 78-36-42-991-310, 405/TASK 78-36-42-991-311, 406/TASK 78-36-42-991-312, 407/TASK 78-36-42-991-304, 408/TASK 78-36-42-991-306)
 Subtask 78-36-42-210-051
 A. Perform Preparation before installation as follows:
 (1) Make sure that the parts are clean and damage free, especially examine for dents and cracks.

 (2) Clean the parts:

 WARNING : BEFORE THE USE OF SOLVENT, PROTECTIVE FILM OR SEALANT
_______ CAREFULLY READ THE APPLICABLE "MATERIAL SAFETY DATA SHEET" AND FOLLOW ALL LISTED SAFETY AND HEALTH PRECAUTIONS. USE THESE PRODUCTS IN AN AREA OPENED TO THE AIR AND WEAR PROTECTION GLOVES. THESE PRODUCTS ARE FLAMMABLE AND VAPOR IS DANGEROUS. THEY MAY CAUSE IRRITATION OF EYES, NOSE, THROAT AND SKIN. HIGH CONCENTRATIONS MAY CAUSE WEAKNESS, HEADACHE, NAUSEA, DIZZINESS AND IMPAIRED JUDGEMENT.
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R R  Outer Flange Adjustment Figure 407/TASK 78-36-42-991-304
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R R  Outer Flange Locator Tool Figure 408/TASK 78-36-42-991-306
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R R R R R R  (a) If necessary, clean the parts with stoddard solvent (Material No. CP2011) or acetone (Material No. CP1039) or ardrox 552 (Material No. CP2559) or turco ind 79 (Material No. CP2560) or mag-chem teksol (Material No. CP2566) or degreasol 99 R (Material No. CP2584) or mag-chem skysol (Material No. CP2656) and dry with clean compressed air.
 Subtask 78-36-42-420-050
 B. Installation of the Adapter Ring Assembly
 NOTE : You should apply a witness line of finish paint EA4 blue 5991____ (Material No. CP2245) on all nuts and connections when you have checked their torques.
 (1) Install the lower fittings as follows: (Ref. Fig. 401/TASK 78-36-42-991-301, 402/TASK 78-36-42-991-302, 403/TASK 78-36-42-991-303)
 (a) Attach the stop fitting to the fan frame with the bolts, the screws, the washers and the nuts.
 (b) TORQUE the nuts to between 70 and 80 lbf.in (0.79 and 0.90 m.daN).
 (2) Install the lower struts as follows: (Ref. Fig. 401/TASK 78-36-42-991-301, 402/TASK 78-36-42-991-302, 403/TASK 78-36-42-991-303, 404/TASK 78-36-42-991-310)
 (a) Apply RTV 106 (Material No. CP2267) on the lower stop fittings, the lower channel bracket, and on the tube bundle box.
 (b) Attach the lower struts to the fan frame with the screws.
 (c) TORQUE the screws to between 45 and 53 lbf.in (0.50 and 0.59 m.daN).
 (3) Install the inner flanges as follows: (Ref. Fig. 401/TASK 78-36-42-991-301, 402/TASK 78-36-42-991-302, 403/TASK 78-36-42-991-303, 404/TASK 78-36-42-991-310)
 (a) Apply RTV 106 (Material No. CP2267) on the tube bundle box and between the splice assembly and inner flange.
 (b) Attach the splice assemblies to the tube bundle box with the screws.

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 (c) TORQUE the screws to between 45 and 53 lbf.in (0.50 and 0.59 m.daN).

 (d) Attach the inner flanges with the bolts and the washers.

 (e) TORQUE the bolts on the inner flange to between 70 and 80 lbf.in

 (0.79 and 0.90 m.daN).

 (f) Apply a bead of RTV 106 (Material No. CP2267) at the junction of the lower struts with the lower strut engine.

 (4) Install the upper forward seal fitting as follows: (Ref. Fig. 401/TASK 78-36-42-991-301, 402/TASK 78-36-42-991-302, 403/TASK 78-36-42-991-303, 405/TASK 78-36-42-991-311)

 (a) Attach the upper forward seal fitting with the screws.
　
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