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Necessary redesign of certain parts of the fuel system due to operational difficulties and failures which have occurred in the field.
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The Continental engines currently used in Ercoupes are furnished, in some cases, with the S.A.E. No. 1 flanged propeller mount. The transition from the tapered shaft to the flange shaft will not be applicable to any specific serial number of Ercoupe, or date.
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Inspecting the forward stabilizer attaching bolts for tightness.
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Installation instructions for starter, generator, voltage regulator and battery.
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In 1946, the aluminum alloy permanent mold nose landing gear wheel was replaced by a nose wheel of die-cast magnesium. It has come to our attention that a few failures of the die-cast wheels have occurred.
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A synthetic liner used as a hose connection in the Engine Oil Breather System has been found to separate from the hose structure, interfering with proper engine ventilation and leading to oil leaks.
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Over-demonstrating the Ercoupe airplane (doing maximum performance maneuvers at minimum altitudes and at minimum speed) can lead to accidents.
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Detailed instruction on the relubrication of sealed bearings used in the Ercoupe.
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Suggested procedure for use in rigging, or making adjustments to the rigging, of the new elevator type in 1948 Ercoupe models.
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Suggested procedure for use in rigging or making adjustments to the rigging of the Ercoupe.