(5)
Carefully remove the aft fairing panel.
S 034-006-B00
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737-300/400/500MAINTENANCE MANUAL
SEE A
A
Aft Wing-To-Body FairingFigure 401
G94687
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TASK 53-51-21-404-007-B00
3. Install the Aft Wing-to-Body Fairing
____________________________________
A. References
(1)
AMM 34-57-21/401, ADF Sense Antenna Coupler
(2)
AMM 34-57-01/501, Automatic Direction Finder System
(3)
AMM 33-51-22/201, Emergency Exit Overwing Lights
(4)
AMM 20-30-11/201, Adhesives, Cements, and Sealers
(5)
AMM 51-31-00/000, Seals and Sealing
B. Access
(1) Location Zones
300/400 Left Wing/Right Wing
C. Procedure
S 144-008-B00
(1)
Examine the mating surfaces on the structure and the fairing panel. Ensure all surfaces are clean and free from any contamination or painting.
S 154-009-B00
(2)
Examine the fasteners and the area around the fastener holes to make sure they are clean and free from any contamination.
NOTE: Stainless steel fasteners are usually used at various
____
locations on the panel.
S 114-019-B00
WARNING: DO NOT GET METHYL ETHYL KETONE (MEK) IN YOUR MOUTH OR EYES, OR
_______ ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM MEK. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS, FLAME, AND HEAT. MEK IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURY OR DAMAGE.
(3)
Use MEK to clean the fasteners and the fairing panel areas around the fasteners.
S 154-021-B00
(4)
Remove any paint or primer covering the conductive surface at the panel in the area underneath the dimpled washer.
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S 354-022-B00
(5) If the conductive surface is flame sprayed aluminum, do the following:
(a)
Apply alodine over the exposed aluminum.
(b)
Install stainless steel bolt and dimpled washer.
(c)
Measure the resistance.
NOTE: Maximum resistance shall not exceed 0.5 OHMs.
____
(d) Touch up the finish.
S 284-012-B00
WARNING: MAKE SURE THE DANGEROUS GAS CONTENT OF THE AIR IS LESS THAN 20
_______ PERCENT OF THE LOWER EXPLOSION LIMIT IF THE METER USED IS NOT EXPLOSION PROOF. AN EXPLOSION CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(6) Do a resistance check from the ground plane strip to the airplane structure.
NOTE: The maximum resistance must be 1.0 ohm.
____
S 434-023-B00
(7) Install the fasteners which attach the fairing to the structure.
NOTE: Make sure the stainless steel bolts and dimpled washers are
____ installed at the same locations on the fairing panel as they were prior to removal of the panel. Installing different hardware in these locations may result in unacceptable electrical bonding.
Refer to the IPC to find the type of coating for the installed fairing.
(a) Torque fasteners to 25-35 lb. inches (2.8-4.0 Nm).
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