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Inspect all seaplanes to determine if the bulkhead reinforcements of Luscombe Drawing 48701 are presently installed at fuselage Station 4.
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Inspecting the wing lift struts for corrosion and forks for cracks, and making necessary repairs.
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Instructions to prevent possible leakage of carbon monoxide into the cabin heater system in airplanes utilizing Avcon Industries, Inc., kits with defective mufflers.
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To advise the pilot concerning proper fuel transfer pump operation, install Javelin Placard 782-14 or an equivalent FAA-approved placard, adjacent to the fuel transfer pump switch.
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To prevent loss of rudder control inspect the rudder control system and modify the rudder bellcrank assembly in a manner prescribed in this AD.
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Preventing elevator flutter in the event the elevator trim tab control wire fails by installing elevator trim tab stop and spring.
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Checking the operation of the voltage regulator by observing the ammeter reading.
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A positive locking device must be installed on the zipper in the baggage compartment bottom to prevent articles to fall through and foul the controls.
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Install a new fuselage gas tank overflow line and replace the imperial brass compression sleeve with a rubber washer.
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To provide additional bearing area and more positive locking action for the aileron control stop adjustment screw.