S 864-012

 (2)  
Open the applicable circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:

 (a)  
11C28, WING ANTI-ICE

 (b)  
11R20, WING ANTI-ICE

 (c)  
11C29, WING ANTI-ICE

 (d)  
11D29, WING ANTI-ICE

 S 034-013
 (3)
Disconnect the electrical connector from the TAI valve (View B).

 S 034-014

 (4)  
Disconnect the jumper cable from the TAI valve.

 S 024-015

 (5)  
Remove the two bolts to separate the TAI seal door from the upper telescoping duct.

 S 034-016

 (6)  
Remove the TAI duct section that is inboard of the duct section that is connected to wing TAI valve (Ref 36-11-01). Do not remove duct section connected to the TAI valve.

 NOTE: This will give you sufficient clearance to move the TAI valve
____ and ducts connected to it inboard to be clear of the upper telescoping duct.
 S 034-017
 (7)  
Remove the bolts that hold the upper telescoping duct to the structure and to the TAI valve duct.

 S 034-018

 (8)  
Hold the TAI valve, and the ducts connected to it, and unclamp the TAI valve duct from the structure. Move the TAI valve and ducts inboard to be clear of the upper telescoping duct.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 30-11-05
 ALL  ú ú 02 Page 405 ú May 28/99

A

757
MAINTENANCE MANUAL

 S 024-019
 (9)  Remove the upper telescoping duct from the wing.
 TASK 30-11-05-404-048
 3. Install Upper Telescoping Duct
______________________________
 A. Consumable Materials
 (1)  D00203 Lubricant - SUPER-O-LUBE
 B. References
 (1)  
06-44-00/201, Wing Access Panels

 (2)  
AMM 20-10-23/401, Standard Practices Lockwire

 (3)  
24-22-00/201, Electrical Power - Control

 (4)  
27-81-00/201, Leading Edge Slat System

 (5)  
36-11-01/401, Upper Strut Pneumatic Y-Duct

 (6)  
78-31-00/201, Thrust Reverser System

 C. Access
 (1)  
Location Zones
 511 Leading edge to front spar (Left)
 521 Leading edge to front spar (Left)
 522 Slat No. 4 (Left)
　
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