TM 1-1520-238-23
Change 9
1-158.19
1.49.
CORROSION CONTROL/INSPECTION – continued
(2) Seal all bolt heads, nuts, exposed threads, fittings, and connectors with sealing compound (item 160,
App F) or sealing compound (item 170A, App F).
(3) Fill bolt holes in gearbox with RTV adhesive (item 16, App F).
(4) Apply corrosion preventive compound (item 64, App F) to all electrical connectors, followed by corrosion
preventive compound (item 62B, App F).
q. Tail Rotor Gearbox (area 5)
(1) Seal all bolt heads, nuts, exposed threads, fittings, and connectors with sealing compound (item 160,
App F) or sealing compound (item 170A, App F).
(2) Fill bolt holes in gearbox with RTV adhesive (item 16, App F).
(3) Apply corrosion preventive compound (item 64, App F) to all electrical connectors, followed by corrosion
preventive compound (item 62B, App F).
(4) Seal all gaps at base directional servo actuator with sealing compound (item 161, App F) or sealing
compound (item 170C, App F).
r. Fuselage – left side aft (area 6)
(1) Apply corrosion preventive compound (item 63, App F) or corrosion preventive compound (item 63A,
App F) to stowage compartment L330 door, hinge, latch, and fairing hinges on access doors R410 and
R475.
(2) Seal around electrical connector J97 with sealing compound (item 160, App F) or sealing compound
(item 170A, App F).
s. Catwalk (area 8)
(1) Apply corrosion preventive compound (item 63, App F) or corrosion preventive compound (item 63A,
App F) to latches and hinges on equipment bay doors L325, T290L, T290R, T250L, and T250R.
(2) Apply corrosion preventive compound (item 64, App F) to all electrical connectors, followed by corrosion
preventive compound (item 62B, App F).
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