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Directions to prevent possible engine power loss due to fatigue failure of the carburetor alternate air valves.
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How to detect battery acid corrosion of elevator and rudder control cables and corrosion of other airframe components in the battery area.
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How to prevent structural failure of the lower longerons.
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As a result of several cases of engine power loss due to the carburetor alternate air door being sucked into the engine, make the spring loaded alternate air door inoperative by one of the following methods.
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Directions to prevent failure of the upper wing front spar strut fittings, P/N 2-1976, that could result
in an in-flight separation of the wing.
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Verify that the propeller is properly indexed to the crankshaft flange.
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Inspect and, if necessary, modify the pilot/co-pilot upper shoulder harness adjusters that have certain Cessna accessory kits incorporated.
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How to prevent an inflight electrical system failure, smoke in the cockpit, and/or fire in the wire bundle behind the instrument panel.
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Steps to correct an unsafe condition in the main gear (Met-Co-Aire Tricycle Landing Gear).
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Inspect wing drag wire system for loose or broken drag wires and inspect ribs for damage.