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Replacement of front lift strut wing attachment fittings to prevent failure of lift strut wing fitting due to tie-down loads.
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Compromised structural integrity of the fuselage due to excessive rust and corrosion between steel tubing and preformed sheet steel material.
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Instructions to provide an alternate source of fuel tank venting in case of fuel tank vent obstruction by foreign material and/or sticking of the fuel vent valve.
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Checking fuel selector valve for ease of rotation and instructions for lubricating.
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Instructions for installing shock cords on Piper PA-12 and PA-14 aircraft.
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Inspection of front and rear control stick socket castings for cracks at the ears to which the push-pull tube attaches.
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The following is cited from LPC Bulletin 1033, the installation instructions for the PA-22 taildragger conversion.
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Prevent flight controls malfunction including possible loss of control due to cable failure.
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Required operation limitations for 75HP model 415-C, per supplement No. 6 of FAA No. 43 dated August 15, 1942.
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Spar repair information for Piper aircraft with aluminum spars.