09/16/2021Univair
Wood circuit protectors incorporate a safety feature that allows the circuit to be broken manually by pulling out the circuit protector push-pull button.
09/16/2021Univair
Instructions for the removal and replacement of brake drums on Goodrich D3-13A-1 wheels.
09/17/2021Univair
Replacing fuselage tubes beneath the seats and floorboards due to damage.
09/17/2021Univair
It has been found that the "Cub" becomes quite noticeably nose heavy with full load and power off condition when the space between the wing and the center section is left uncovered.
09/17/2021Univair
As a safety precaution, it is advisable to remove the fuel drain fitting and clean off all accumulations of foreign matter in the screen every 100 hours of flight.
09/16/2021Univair
Reports of the end fittings on the tailwheel shock cords pulling off during taxi procedures. Includes repair procedures.
09/16/2021Univair
Recommendations to prevent motor mount failures.
09/17/2021Univair
Instructions for safetying the terminal attachment nut on the magneto ground wire.
09/16/2021Univair
Provides inspection and fatigue life requirements applicable to the wing lift strut forks.
09/17/2021Univair
Inspection of control cables and replacement of 1/8” 7 x 19 flexible stainless steel control cables on foreign registered airplanes.
09/17/2021Univair
Corrosion between the aluminum terminal and aluminum wire at the battery positive post, resulting in overheating of the wire due to high electrical resistance.
09/16/2021Univair
The use of automotive type gasoline in General Aviation aircraft is believed to be a contributing factor in numerous accident investigation reports.
09/16/2021Univair
To provide inspection access for the lift strut attachment fitting on the forward side of the front spar and to provide details for the inspection of wing components for corrosion.
09/16/2021Univair
Recommended inspection of the sealing of firewall holes.
09/16/2021Univair
Vibration has caused the quick oil drain valve to break at the rubber washer seal and also at the point where the copper drain tube is soldered.
09/16/2021Univair
Repairs made in the aileron hinge bearing blocks utilizing dural rivets are unauthorized and all dural rivets must be removed and replaced with soft steel round head rivets of appropriate size.
09/16/2021Univair
It has been found that the .040" brass safety wire which is being used to safety the propeller hub bolts does not provide a safety that is completely satisfactory.
09/16/2021Univair
The importance of proper maintenance of the carburetor air filter for satisfactory service life of the engine.
09/21/2021Univair
A list of the various finishes used on the interior and exterior of all Piper aircraft models J-3 thru PA-30, dated 1950 through 1964.
09/21/2021Univair
Federal Aviation Agency release pertaining to flight control hazards and protection from icing.