TASK 30-11-00-790-801
3. Wing Anti-Icing Duct - Leak Test
(Figure 501)
A. General
(1) This test checks for leaks in the wing anti-icing ducts in the fixed leading edge of the wings,
and in the telescoping ducts. The check includes a visual inspection of the ducts and
connectors. The check also includes feeling for leaks at the clamp connectors and duct
sleeves.
B. References
Reference Title
24-22-00-860-813 Supply External Power (P/B 201)
24-22-00-860-814 Remove External Power (P/B 201)
36-00-00-860-802 Supply Pressure to the Pneumatic System with an External
Ground Air Source (P/B 201)
36-00-00-860-803 Supply Pressure to the Pneumatic System with the APU
(P/B 201)
36-00-00-860-806 Remove Pressure from the Pneumatic System (P/B 201)
C. Location Zones
Zone Area
510 Subzone - Left Wing: Leading Edge, Fwd of Front Spar, Inbd of Strut and Nacelle
Gap Cover Area
520 Subzone - Left Wing: Leading Edge, Fwd of Front Spar, Outboard of Strut and
Nacelle Gap Cover Area
610 Subzone - Right Wing: Leading Edge, Forward of Front Spar, Inboard of Nacelle
Strut, Including Gap Cover Area
620 Subzone - Right Wing: Leading Edge, Forward of Front Spar, Outboard of Nacelle
Strut
D. Access Panels
Number Name/Location
521AB Outboard Leading Edge Blowout Door - Slat Station 20.04
621AB Outboard Leading Edge Blowout Door - Slat Station 20.04
E. Prepare for the Procedure
SUBTASK 30-11-00-860-009
(1) If it is necessary, supply electrical power to the airplane (TASK 24-22-00-860-813).
SUBTASK 30-11-00-860-010
(2) Make sure that the thrust levers are in the IDLE position.
SUBTASK 30-11-00-010-002
(3) Open these access panels:
Number Name/Location
521AB Outboard Leading Edge Blowout Door - Slat Station 20.04
621AB Outboard Leading Edge Blowout Door - Slat Station 20.04
F. Procedure
SUBTASK 30-11-00-210-002
(1) Do a visual check of the wing thermal anti-icing duct and fittings.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-11-00
Page 508
D633A101-ILF Feb 15/2016
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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