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A recent fuel tank collapse was attributed to inadequate venting, caused by obstruction of the cap vent holes installed per Piper Service Bulletin No. 522.
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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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Compromised structural integrity of the fuselage due to excessive rust and corrosion between steel tubing and preformed sheet steel material.
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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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Installing an improved forward fuel header tank with thicker walls and welded seals, which provides greater resistance to impact rupture in the event of an accident.
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A condition exists where the flexible coupling connecting the vacuum pump may fail prematurely, causing a loss of vacuum/pressure with the resultant loss of vacuum/pressure instruments and other appliances.
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Instructions for correcting an incorrectly installed pointer on the fuel selector valve.
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Installing an additional standard fuse (15A Bussman #AGC-15) in the wire between the cigar lighter and the ammeter at the next 100 hour inspection to protect against a short circuit condition.
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A recent survey of PA-20 and PA-22 aircraft has revealed that a certain number of these airplanes are operating with the strainer to carburetor flexible fuel line in a deteriorated condition.
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Update to Service Letter #209.