Aviation Partners Boeing 757-200 MAINTENANCE MANUAL SUPPLEMENT  Part II 
Disconnect and secure Winglet Wiring Harness Connectors 
Adapter Plug Up 
Aft 
Outbd 
Figure 402 
Disconnection of Winglet Wiring Harness Connectors 
Note: Access from under wing. 
(Shown from above, Upper Leading Edge Panel Omitted for Clarity)
Aviation Partners Boeing 
757-200 MAINTENANCE MANUAL SUPPLEMENT  Part II 
Rivets common to LE and Adapter Plug (17 ea. on upper wing) 
Up  Aft  
Adapter Plug  Outbd  
Figure 403a Removal of rivets common to LE and Adapter Plug (Viewed from above)  
Rivets common to LE and Adapter Plug (6 ea. on lower wing)  Adapter Plug  Up  
Outbd  
Aft 
Figure 403b 
Removal of rivets common to LE and Adapter Plug at WBL 740.00 
(Viewed from below)
Aviation Partners Boeing 757-200 MAINTENANCE MANUAL SUPPLEMENT  Part II 
Looking Outboard at Adapter Plug at WBL 740.00 
7/16 Dia. 
7/16 Dia.
No Barrel Nut Barrel Nut 
C4 C8 C10 C5 C1
C14 A11 
D12 
D2
D6 D9 B13
D7 D3 
1/2 Dia. Barrel Nut
1/2 Dia. 
No Barrel Nut
Figure 404 
Mid Spar Tension Nut Installation 
(Numbers indicate torque order)
Special Precaution: Parts are location sensitive. Therefore, it may be necessary to note size, orientation and position of each washer as indicated on the Engineering drawing for reassembly applications.   
Aviation Partners Boeing 
757-200 MAINTENANCE MANUAL SUPPLEMENT  Part II 
Adapter Plug and Winglet 
Removal/Installation as an Assembly
1. General 
A. This procedure contains two tasks. 
(1) 
The first task gives instructions to remove the right or left adapter plug and winglet assembly.
(2) 
The second task gives instructions to install the right or left adapter plug and winglet assembly.
2. Remove the adapter plug and winglet assembly 
A. References 
(1) 
AP57.2-0600 Sec 57-31-00, Winglet Removal/Installation/Inspection
(2) 
AP57.2-0600 Sec 57-31-01, Adapter Plug Removal/Installation
B. Equipment 
(1) HSE757-0010 – Sling, Winglet 
C.  Access 
(1)
 Location Zones
. 
546 Adapter Plug – Left Wing
. 
547 Winglet – Left Wing
. 
646 Adapter Plug – Right Wing
. 
647 Winglet – Right Wing
(2)
 Access Panels
. 
Wing Leading Edge Lower Access Panel (Left and Right)
. 
544BB/644BB Wing Inspar Lower Access Panel
. 
546AB/646AB Adaptor Plug Inspar Lower Access Panel
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