6.
ALL MANUFACTURED HEADS OF RIVETS WHICH ATTACH VENT STIFFENERS (S-11 & S-12) TO UPPER SKIN OF THE WING CENTER SECTION SHALL BE SEALED PER BAC5504.
Wing Sealing Index and Requirements
Figure 2 (Sheet 1)
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MAINTENANCE MANUAL
MAIN TANK #1, #2 OPPOSITE
ABSOLUTE FUEL SEAL PER BAC5504 REQUIRED ON ALL INTERNAL BOUNDARIES OF TANK. ISOLATION FUEL SEAL PER BAC5504 REQUIRED AT INTERVALS ALONG ALL SEALED SEAMS
2 STRUCTURAL VENTS (INTEGRAL TANK)
ABSOLUTE FUEL SEAL PER BAC5504 ON INTERNAL AND EXTERNAL BOUNDARIES OF VENTS. SEE CORROSION PROTECTION REQUIREMENTS FOR INFORMATION ON SEALING OVER CORROSION PROTECTIVE COATING AND USE OF MECHANICALLY SEALED MANUFACTURED HEADS OF RIVETS
3 VENT SURGE TANK ABSOLUTE FUEL SEAL PER BAC5504 REQUIRED ON ALL INTERNAL BOUNDARIES OF TANK ____IN THE AREAS OF AN ABSOLUTE FUEL SEAL IT IS NOT NECESSARY TO SEAL WHERE AN ABSOLUTE FUEL
NOTE:
SEAL IS PROVIDED ON THE OPPOSITE SIDE.
BAFFLE RIB (WBL 157)
INTERMEDIATE FUEL SEAL PER BAC5504 REQUIRED ON RIB CHORD FLANGES COMMON TO THE SKINS
WING CENTER SECTION
1.
ABSOLUTE FUEL SEAL REQUIRED ON ALL INTERNAL BOUNDARIES OF TANK PER BAC5504
2.
SEALANT REQUIRED AT ALL EXTERIOR MEMBERS ATTACHMENT BRACKETS, PROTRUDING HEAD FASTENERS, ETC., WHICH ARE FASTENED TO THE UPPER PANEL AND FRONT SPAR. THIS SEALANT PROVIDES A SMOOTH SURFACE FOR THE SECONDARY BARRIER COATING
3.
SECONDARY BARRIER COATING PER BAC5527 - VAPOR AND FUEL LEAK ISOLATION SEAL ON EXTERIOR SURFACE OF UPPER PANEL AND FRONT SPAR EXPOSED TO PRESSURIZED COMPARTMENTS OF THE AIRPLANE
STRUCTURAL VENT (WING CENTER SECTION)
ABSOLUTE FUEL SEAL PER BAC5504 ON INTERNAL AND EXTERNAL BOUNDARIES OF VENT. A SECOND FUEL BARRIER SHALL BE LOCATED BETWEEN THE VENT AREA AND THE CABIN PRESSURE AREA BY DOUBLE SEALING ALL FASTENERS AND SEAMS WHICH ARE COMMON TO BOTH AREAS. SEALING APPLICATION FOR SECONDARY FUEL BARRIER SHALL BE PER BAC5000
PRESSURE FLOOR
EXTENSIVE PRESSURE SEAL PER BAC5000 REQUIRED ON ENTIRE UPPER SURFACE OF PRESSURE FLOOR FROM B STA 664 TO B STA 727 AND FORWARD SURFACE OF VERTICAL WEB FROM WL 193.86 TO WL 202.6
8 LEADING EDGE RIB AND BOOST PUMP CAVITY ABSOLUTE FUEL SEAL PER BAC5000 APPLIED TO LEADING EDGE RIBS, FRONT SPAR AND BOOST PUMP CAVITY. SEE 65-47812 FOR SEALING INFORMATION
9 THERMAL ANTI-ICING LIMITED SEAL PER BAC5000 REQUIRED FOR LEADING EDGE SLATS
Wing Sealing Index and Requirements
Figure 2 (Sheet 2)
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LEADING EDGE RIB ISOLATION SEAL DAMS ISOLATION FUEL SEAL PER BAC5000 TO PROVIDE DAMS
LANDING LIGHT ABSOLUTE AND INTERMEDIATE WEATHER SEAL PER BAC5000 ALL LIGHT COMPARTMENT BOUNDARIES OUTSIDE ELEMENTS
INTERMEDIATE AND LIMITED SEAL PER BAC5000 FIREWALL (NACELLE TO WING FAIRING)
TRAILING EDGE RIB LIMITED VAPOR SEAL PER BAC5000
WINGTIP (EMERGENCY SEAL) LIMITED VAPOR SEAL PER BAC5000
CLOSURE RIB AND REAR SPAR, OUTBOARD OF VENT SURGE TANK INTERMEDIATE SEAL PER BAC5000 (SEE 65-47812)
Wing Sealing Index and Requirements
Figure 2 (Sheet 3)
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737-300/400/500MAINTENANCE MANUAL
CORROSION PROTECTION REQUIREMENTS APPLY CORROSION PROTECTIVE COATING F19.22 (BMS 10-20 PER BAC5793) TO INTEGRAL FUEL TANK AREAS AS FOLLOWS:
1.
THE ENTIRE INTERIOR BOTTOM SURFACE AND FASTENERS, INCLUDING DETAILED PARTS WHICH HAVE PREVIOUSLY BEEN COATED WITH F19.22
2.
ALL INSTRUCTURE UP TO 2.5 INCHES ABOVE THE INTERIOR BOTTOM SURFACE WITH OPTIONAL COATING ON BAFFLES, ATTACH CLIPS, AND THE LOWER SURFACE OF THE STIFFENER UPPER FLANGES AS SHOWN:
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