(2)
G57004-7 - Installation/Removal Tool - Winglet Aft Mount Bolts
B. Standard Tools and Equipment
(1)
Positioner - Load (For 140 Pounds), LL-5-3, Permadur Industries, INC. 47 old camplain road, Somerville New Jersey, 08876 USA. (alternative)
(2)
Hoist - Suitable for reaching above the winglet with provisions for attaching the winglet sling
C. References
(1) IPC 57-28-01 Fig. 1
D. Access
(1) Location Zone
539 Winglet, Left
639 Winglet, Right
E. Procedure
S 014-002
(1) Remove the mid fairing.
NOTE:____There are three divided sections to the mid fairing. A forward, or leading edge section, an aft inboard section and an aft outboard section. You must remove all three of these sections before you remove the winglet.
(a) Remove the screws from the perimeter of the forward section of the mid fairing.
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747-400
MAINTENANCE MANUAL
WING EXTENSION
Winglet Installation
Figure 401 (Sheet 1)
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747-400
MAINTENANCE MANUAL
Winglet Installation
Figure 401 (Sheet 2)
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747-400 MAINTENANCE MANUAL
(b)
Remove the forward section.
(c)
Remove the screws from the forward edge at the aft inboard section and the aft outboard section.
(d)
Remove the splice channels from the fairing.
(e)
Remove the screws from the edges of the aft inboard section of the mid fairing.
(f)
Remove the aft inboard section.
(g)
Hold the aft outboard section of the mid fairing while you remove the screws from the edges of the section.
(h)
Remove the aft outboard section.
S 494-003
(2) Attach the sling to the winglet.
(a) Use the recommended hoist and load positioner to lift the winglet.
NOTE: The load positioner tool is not needed if the hoist
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