-
The RPM restriction placard is no longer necessary and can be removed from above mentioned airplanes.
-
To aid in the identification of both types (old vs. new) of fuel tank caps for the Piper PA-22 airplanes, we have provided sketches on the reverse side
of this letter.
-
This letter announces the approval of the eight gallon auxiliary fuel tank installation in the PA-22 "135" and PA-22 "150" airplanes, serials 22-534 and up.
-
Reinforcing the bottom longeron on PA-18A airplanes to prevent bends caused by certain load conditions or maneuver types.
-
Inspecting the engine mount to determine if there is any evidence of fatigue cracks in the vicinity of the welds at both the firewall and the engine attachment points.
-
Incorporating a new air filter installation which takes carburetor air from the top of the engine cowl instead of the bottom, thereby reducing the amount of sand and dirt that can enter the engine.
-
Solution for cigarette lighter popping out of its socket after becoming fully heated.
-
The new Fuel Selector Valve, part number 11383-04, should be used for all service replacements and all new installations on Piper PA-18, PA-20 and PA-22 airplanes equipped with two wing fuel tanks.
-
Information concerning the use of safety belts which do not have TSO approval.
-
Discussion concerning the useful life of the eight rubber engine support bushings, Lycoming part number 60883.