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Removal, TASK 29-11-00-860-805.
SUBTASK 27-81-52-010-001
(4) To gain access to the UCM valve, do this step:
Remove this access panel:
Number Name/Location
192BR ECS Ram Air Inlet Mixing Duct Panel - Forward
F. Leading Edge Flap and Slat Valve Removal
SUBTASK 27-81-52-020-001
(1) Remove the valve [3]:
CAUTION: DO NOT LET HYDRALUIC FLUID GET ON EQUIPMENT. IF HYDRAULIC FLUID
GETS ON EQUIPMENT, IMMEDIATELY CLEAN IT FROM THE EQUIPMENT.
HYDRAULIC FLUID CAN CAUSE DAMAGE TO EQUIPMENT.
(a) Put a 5 gallon (19 liters) fuel resistant container, STD-1054 below the valve [3] to catch
hydraulic fluid.
(b) Disconnect the hydraulic lines from the valve [3].
1) Install caps on the hydraulic lines.
2) Install plugs in the hydraulic ports of the valve [3].
(c) Disconnect the electrical connectors from the valve [3].
(d) Remove the bolts [1], and washers [2].
(e) Remove the valve [3].
------------------------- END OF TASK ---------------------------
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Leading Edge Uncommanded Motion (UCM) Valve Installation
Figure 401 (Sheet 1 of 2)/27-81-52-990-801
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Leading Edge Uncommanded Motion (UCM) Valve Installation
Figure 401 (Sheet 2 of 2)/27-81-52-990-801
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TASK 27-81-52-400-801
3. LE Uncommanded Motion (UCM) or LE Cruise Depressurization Valve Installation
(Figure 401)
A. References
Reference Title
27-81-00-700-804 Leading Edge Uncommanded Motion Protection Test (P/B 501)
27-81-00-730-801 Leading Edge Cruise Depressurization Test (P/B 501)
SWPM 20-60-03 Standard Wiring Practices Manual
B. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
COM-1550 Meter - Bonding
(Part #: C15292, Supplier: 01014, A/P Effectivity: 737-ALL)
(Part #: M1, Supplier: 3AD17, A/P Effectivity: 737-ALL)
(Part #: M1B, Supplier: 3AD17, A/P Effectivity: 737-ALL)
(Part #: MODEL 1010-A, Supplier: 3AD17, A/P Effectivity: 737-ALL)
C. Consumable Materials
Reference Description Specification
A00247 Sealant - Pressure And Environmental - Chromate
Type
BMS5-95
G50171 Compound - Corrosion Inhibiting Compound,
Interior Application - D5026NS or ZC-026
D. Location Zones
Zone Area
132 Center Section Wing Box, Body Station 540.00 to Body Station 663.75
- Right
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Left
134 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Right
E. Access Panels
Number Name/Location
192BR ECS Ram Air Inlet Mixing Duct Panel - Forward
F. Leading Edge Flap and Slat Valve Installation
SUBTASK 27-81-52-420-001
(1) Install the valve [3]:
(a) Make sure the mating surfaces of the valve [3] and the bracket are clean.
(b) Put the valve [3] in its position.
(c) Install the bolts [1] and washers [2].
(d) Apply thin layer of sealant, A00247 along the edges of the joint between the mating
surfaces.
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(e) Connect the hydraulic lines to the valve [3].
1) Remove the caps from the hydraulic lines.
2) Remove the plugs from the hydraulic ports on the valve [3].
3) Connect the hydraulic lines to the valve [3].
(f) Before you connect the electrical connectors, examine the connectors for corrosion.
WARNING: DO THE STEPS BELOW IF THE AIRPLANE OPERATES AT AIRPORTS WHERE
DEICING FLUID THAT CONTAIN POTASSIUM FORMATE IS USED. ALSO DO THE
STEPS FOR ALL AIRPLANES THAT YOU FOUND CORROSION IN THE
ELECTRICAL CONNECTORS IN THE MAIN WHEEL WELL. THE ELECTRICAL
CONNECTOR IS PART OF A SYSTEM THAT IS NECESSARY FOR SAFE FLIGHT.
　
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