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Steps to preclude failure of the U12694 series throttle cables, which could cause loss of full travel of the throttle control.
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Instructions for compliance with Marvel-Schebler Division Bulletin No. A1-69.
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Rework attachment of windshield upper edge to insure that the windshield will not pull out at the top and alter airflow, seriously affecting operation of the airplane.
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Inspecting the the front fin attachment fitting for cracks around the weld at the fin end.
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Possibility of a short circuit occurring between the battery terminal bases and the battery box.
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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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Tightening engine mounting bolts to obtain a torque of (40) inch pounds.
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Inquiries relative to the new "Duraclad" finish on our 1951 Model airplanes.
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Inspection of all PA-20 name plates and those bearing the model designation "PA-20A" be removed and returned to the Factory Service Department for replacement.
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Instructions for sealing any gaps or holes in the firewalls with non-hardening fireproof putty.