09/01/2021Univair
Steps to prevent rain water from entering the fuel tanks.
09/01/2021Univair
The Hypass No. 48P6 ignition filters should be removed from the magnetos and replaced with magneto filter, Piper No. 63149.
09/01/2021Univair
Cracking in the leading edge of the streamlined tube of the landing gear at the point where the tube joins the inboard end of the axle.
09/01/2021Univair
Instances of excessive CO concentration in the cockpit when the dusting venturi is used.
09/01/2021Univair
Possibility of loss of fuel and hydraulic oil and fire in flight caused by chafing of these lines between the firewall and muffler.
09/01/2021Univair
How to prevent the control stick inadvertently pulling out of the socket.
08/31/2021Univair
Revising the present front and rear wing lift struts.
09/01/2021Univair
Driving rain or washing may cause an accumulation of water in nose wheel oleo housing which can freeze in lower bearing and render rudder system inoperative.
09/01/2021Univair
Installation of insulators inside the battery box cover over the battery terminals to positively prevent a metallic contact between the wing nuts or terminals and cover.
09/01/2021Univair
Inspection of aileron hinge brackets to false spar attachment fittings for cracks.
09/01/2021Univair
Inspection of overage oil radiator hose to determine that hose is marked with a solid white line and a broken red line and AN H-35 or MIL H-6000 are installed.
09/01/2021Univair
Inspect landing gear shock strut end fittings for cracks or other defects in the small bend radii.
08/31/2021Univair
Possibility of under-strength Nicopress sleeves in the control system.
09/01/2021Univair
Aluminum bellcrank castings have been found with cracks across the ears of the forked end.
08/31/2021Univair
Inspect the fittings at each end of the elevator connector tube to determine if the end fittings are riveted to the tube with two rivets 90 degrees apart.
09/01/2021Univair
Replace elbow to prevent possible fuel leakage where the elbow connects with the rear fuel valve.
09/01/2021Univair
Replacement of rivets to avoid arcing between the fuse clip and the wire attachment plate on the fuse block.
09/01/2021Univair
Battery short circuits caused by defective battery holddown brackets.
08/31/2021Univair
Installing a header tank in the fuel system to prevent engine malfunctioning caused by insufficient fuel flow.
09/01/2021Univair
Inspect for interference between the nose cowl and starter ring gear casting and for tightness of the cowl attachments.