(f)
Set the WING ANTI-ICE switch to OFF.
E. Put the Airplane Back to its Usual Condition
S 414-015
(1)
Install the the access panel on the lower wing surface
(AMM 12-30-00/201).
S 094-016
(2)
Do this task: "Leading Edge Flaps and Slats Locks Removal" (AMM 27-81-00/201).
S 864-017
(3)
Remove electrical power (AMM 24-22-00/201).
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30-11-21
ALL ú ú 03 Page 404 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
WING ANTI-ICING TELESCOPING DUCT - REMOVAL/INSTALLATION
_______________________________________________________
1. General_______
A. This subject has two tasks, one for the removal and one for the installation of the telescoping ducts on the wing thermal anti-ice (TAI) system.
B. The telescoping ducts connect the wing TAI manifold to each of the six slat spray ducts in the wing leading edge. Each telescoping duct has an inner and an outer duct. The inner duct attaches to the wing manifold and the outer duct attaches to the slat spray duct. When you remove the leading edge slat, the inner and outer duct disengage. You can remove or install each duct independently.
C. For this procedure, the slat must be installed and must be in the extended position. To replace the inner or the outer duct with the slat removed, some steps of this procedure are not necessary.
TASK 30-11-31-004-001
2. Telescoping Duct Removal (Fig. 401)________________________
A. References
(1)
AMM 12-30-00/201, Wing Lower Surface Access Panels
(2)
AMM 27-81-00/201, Leading Edge Flap and Slat Control System
(3)
AMM 27-81-21/401, Leading Edge Slats
(4)
AMM 54-32-01/401, Foward Fairing
B. Access
(1) Location Zones
302 Left Wing Outboard Leading Edge
402 Right Wing Outboard Leading Edge
C. Procedure
S 864-003
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE LE
_______ FLAPS AND SLATS BEFORE YOU EXTEND THEM. THE LE FLAPS AND SLATS MOVE QUICKLY WHEN YOU OPERATE THEM. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Extend the leading edge slats (AMM 27-81-00/201).
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30-11-31
ALL ú ú 01 Page 401 ú Mar 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
TELESCOPING
DUCT (6 LOCATIONS)
A A
SEE A
O-RING
DUCT BEARING
TAI SUPPLY
MANIFOLD
DUCT SUPPORT
CONNECTION CLAMP
CLAMP
INNER
TELESCOPING DUCT DUCT WING
BEARINGS FRONT
SPAR
CAP NUT SEAL WITH
BACKUP RINGS
DUCT BEARING
OUTER SUPPORT BRACKET FOR MOUNTING BOLT
TELESCOPING THE TELESCOPING DUCT INNER (2 LOCATIONS ON
DUCT AND SPRAY DUCT IN THE TELESCOPING EACH BEARING)
SLAT LEADING EDGE DUCT
B
SUPPORT BRACKET FOR
THE TELESCOPING DUCT
WING TAI MANIFOLD
AND SPRAY DUCT IN THE SUPPLY DUCT
SLAT LEADING EDGE TELESCOPING
B
DUCT DOOR SLAT SPRAY
BEARING
DUCT OUTER
A-A
TELESCOPING DUCT
C C
INNER SKIN PANEL SLAT
COVER PLATE
SPRAY DUCT
ACCESS DOOR FOR THE
TELESCOPING DUCT AND SLAT TELESCOPING DUCT
SPRAY DUCT BEARINGS
A
Wing Anti-Icing Telescoping Duct Installation Figure 401 (Sheet 1)
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