09/01/2021Patrick Standish
Eliminate combustible material and possible ignition sources from the area aft of the firewall, underneath the forward cabin floor, to preclude possibility of inflight fires.
09/01/2021Patrick Standish
Steps to prevent rain water from entering the fuel tanks.
09/01/2021Patrick Standish
The Hypass No. 48P6 ignition filters should be removed from the magnetos and replaced with magneto filter, Piper No. 63149.
09/01/2021Patrick Standish
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.
09/01/2021Patrick Standish
Instances of excessive CO concentration in the cockpit when the dusting venturi is used.
09/01/2021Patrick Standish
Possibility of loss of fuel and hydraulic oil and fire in flight caused by chafing of these lines between the firewall and muffler.
09/01/2021Patrick Standish
How to prevent the control stick inadvertently pulling out of the socket.
08/31/2021Patrick Standish
Revising the present front and rear wing lift struts.
09/01/2021Patrick Standish
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.
09/01/2021Patrick Standish
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.
09/01/2021Patrick Standish
Inspection of aileron hinge brackets to false spar attachment fittings for cracks.
09/01/2021Patrick Standish
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.
09/01/2021Patrick Standish
Inspect landing gear shock strut end fittings for cracks or other defects in the small bend radii.
08/31/2021Patrick Standish
Possibility of under-strength Nicopress sleeves in the control system.
09/01/2021Patrick Standish
Aluminum bellcrank castings have been found with cracks across the ears of the forked end.
08/31/2021Patrick Standish
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.
09/01/2021Patrick Standish
Replace elbow to prevent possible fuel leakage where the elbow connects with the rear fuel valve.
09/01/2021Patrick Standish
Replacement of rivets to avoid arcing between the fuse clip and the wire attachment plate on the fuse block.
09/01/2021Patrick Standish
Battery short circuits caused by defective battery holddown brackets.
08/31/2021Patrick Standish
Installing a header tank in the fuel system to prevent engine malfunctioning caused by insufficient fuel flow.