09/08/2021Univair
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.
09/08/2021Univair
Turning propellers always present a dangerous situation. It is urged that precaution be taken and procedures established for safe deplaning of passengers.
09/09/2021Univair
Undesirable vibration occasionally occurs in the Ercoupe airplane and the cause has been traced to the nose landing gear.
09/09/2021Univair
Changes to prevent cracks occurring in the region of the uppermost rivet used to attach the stiffener to the side cowl.
09/09/2021Univair
The method now used for longitudinal trimming, in the present Ercoupe airplane, was adopted only after very careful consideration and with the thought that the safety quality of the plane would be definitely improved.
09/09/2021Univair
Installation of Oil Cooler Kits on Ercoupes without oil coolers.
09/09/2021Univair
Inspecting the forward stabilizer attaching bolts for tightness.
09/09/2021Univair
Installation instructions for starter, generator, voltage regulator and battery.
09/09/2021Univair
Covers the tightening of the propeller hub bolts on the Continental hub used with the Continental C-75 and C-85 engines.
09/09/2021Univair
All planes with effective serial numbers 1623 and up have the redesigned trim system installed. All planes shipped by rail will be shipped as follows.
09/09/2021Univair
Reports that a certain batch of Resistoflex was used in fuel systems which caused trouble. This batch, manufactured during third quarter of 1945, can be identified by marking LP-3-45.
09/09/2021Univair
List of materials used to create an abrasive walkway on the center section, and instructions for its application.
09/09/2021Univair
A change has been made to Memorandum No. 27 regarding the adhesive used to cement the walkway to the center section.
09/09/2021Univair
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.
09/09/2021Univair
Provisions for locking the sliding windows with or without the green sunshade.
09/09/2021Univair
Part No. 415-22001 (elevator assembly) becomes obsolete and is replaced by part No. 415-22017, an improved type of elevator assembly which incorporates a movable hinged section in the trailing edge.
09/09/2021Univair
Necessary redesign of certain parts of the fuel system due to operational difficulties and failures which have occurred in the field.
09/09/2021Univair
The brake pedal arm has been redesigned as a result of reported failures on this part in the field.
09/09/2021Univair
Describes a method of repair for aluminum fuel tanks, seam leakage or seepage.
09/09/2021Univair
Recommended alternative for sloshing material outlined in service memorandum 33.