09/09/2021Univair
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.
09/09/2021Univair
Suggested procedure for use in rigging or making adjustments to the rigging of the Ercoupe.
09/09/2021Univair
Suggested procedure for use in rigging, or making adjustments to the rigging, of the new elevator type in 1948 Ercoupe models.
09/09/2021Univair
Effective on all Ercoupes serially numbered 2623 and subsequent, the engine cowling will be secured with Camloc fasteners.
09/09/2021Univair
A list of propellers that have been approved by the C.A.A. for installation on the Ercoupe.
09/09/2021Univair
The longitudinal trim system for the Ercoupe has been redesigned to employ a movable section on the trailing edge of the elevator.
09/09/2021Univair
Instructions for replacing wing fuel tanks constructed of ternplate with aluminum tanks.
09/09/2021Univair
Proper adjusting of starter control clearances will reduce the possibility of the starter being accidentally engaged while the motor is running.
09/09/2021Univair
Information and instructions for maintaining and rebuilding the Ercoupe nose landing gear assembly.
09/09/2021Univair
Failure of a fuel pump pressure line, due to chafing on the nose cowl has resulted in a change in the routing of the fuel pump lines.
09/09/2021Univair
There have been two minor modifications in the tanks and fuel system lines since the change from ternplate to aluminum gasoline tanks, which occurred on Ercoupe Serial No. 2623.
09/09/2021Univair
Instructions on the care and proper maintenance of the Ercoupe electrical system.
09/09/2021Univair
Information of the effect of dents in the outer panel leading edge skin.
09/09/2021Univair
Detailed instruction on the relubrication of sealed bearings used in the Ercoupe.
09/09/2021Univair
Reinforcing the Seat Back Assembly (cover) in the area of contact with the Seat Assembly Center Frame in order to provide additional service life.
09/10/2021Univair
Reports of fraying of the control column cable assemblies resulting from contact of the cable assemblies with the set screw in the aileron stops.
09/10/2021Univair
This memorandum is a supplement to Memorandum #49, covering the inspection of control column cables.
09/10/2021Univair
Information and installation instructions for replacing a ternplate fuel tank with an aluminum fuel tank.
09/10/2021Univair
Instructions on the installation of the 5.00 x 5 and 6.00 x 6 nose wheels on Ercoupes, especially those subject to unusually rough landings or operating from unusually rough fields.
09/10/2021Univair
Excessive tightening of nipple AN911-2 may start internal cracks, which will eventually cause complete failure of the nipple.