(2)
Apply a non-removable faying (mated) surface seal.
(3)
Apply a removable faying (mated) surface seal and form-to-place gaskets.
(4)
Apply an injection seal.
(5)
Apply a hole and slot seal.
(6)
Apply a fillet seal.
(7)
Apply a fastener seal.
(8)
Apply aerodynamic smoother.
(9)
Apply an electrical fitting seal.
(10)
Apply a fuel seal.
(11)
The protection of sealing materials.
(12)
Accelerated curing.
B. These tasks give instructions to prevent the leakage of fluids and gases.
C. Listen for the air leakage during a fuselage pressure check to help you find the location of the air leakage.
D. Look for the fluids or stains that are on the dry side of the structural parts to help you find the location of the fluid leakage.
E. There are drain (limber) holes in the fuselage stringers and fuselage frames.
F. The drain holes permit fluids and condensation to drain down to the external (overboard) drains that are on the bottom of the airplane.
G. Make sure you do not cause blockage to these drain holes when you apply the sealant.
H. For data on internal and external drain holes and paths, refer to AMM 51-41-00/001.
I. For data on types of sealant, refer to AMM 20-30-11/201.
J. For data on alternative sealants, refer to Figure 207.
TASK 51-31-00-302-001-B00
2. Prepare for Sealing___________________
A. Equipment
(1) Sealant Removal Tool - made from wood or
plastic 3/16 inch thick, 8 inches long in 1/4,
1/2 and 3/4 inch widths.
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ALL ú ú B02 Page 201 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
B.
C.
D.
A
737-300/400/500MAINTENANCE MANUAL
Consumable Materials
(1)
B00148 Methyl Ethyl Ketone (MEK), ASTM D740
(2)
B00184 Cleaning Solvent - BMS 11-7
(3)
B00634 Citra-Safe
(4)
B00666 Methyl Propyl Ketone (MPK), BMS 11-9
(5)
B01026 Solvent, FCC-55
(6)
G00027 CheeseclothReferences
(1)
AMM 20-30-11/201, Adhesives, Cements, SealersProcedure
S 302-002-B00
(1)
If repair of the structure is necessary, refer to the Structural Repair Manual.
S 212-003-B00
(2)
Examine the seal in the area where there is a leak.
S 212-004-B00
(3)
Identify the seal surface and the seal plane in the adjacent structure.
NOTE: The seal plane is the limit plane through the assembly of
____ Structural Items with a continuous flow of fluids or gases.
S 212-005-B00
(4) Identify the type of seal necessary to do the repair.
S 212-006-B00
CAUTION:_______DO NOT MIX THE SEALING MATERIALS. THE SEALING MATERIALS CAN CONTAMINATE EACH OTHER AND CAUSE POOR ADHESION.
(5) Identify the type of sealant that is used in the damaged area.
NOTE: Refer to AMM 20-30-11 for the type of sealants that are
____
available.
S 362-007-B00
CAUTION:_______USE HARDWOOD OR PLASTIC CUTTING TOOLS. DO NOT USE METAL CUTTING TOOLS. THE METAL CUTTING TOOLS CAN CAUSE DAMAGE TO THE AIRPLANE SURFACE.
(6)
Remove the sealant in the damaged area.
(7)
Remove the loose pieces of the sealant from the damaged areas.
S 362-008-B00
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