SERVICE LETTER #9
Kitfox™ OWNERS WITH 3-BLADE PROP AND PLASTIC SPINNER
DENNEY AEROCRAFT COMPANY
We have had two instances of the plastic spinner coming off in flight
causing blade damage; in one case complete loss of one blade resulting
in the engine nearly shaking out of the mounts. Spinners and hubs of
both units had been painted.
Do not fly the aircraft or run the engine with the spinner installed
until this condition is remedied.
are developing a plate to be attached behind the 1” hole in the front
hub half which will allow a 3/16” dia. long bolt to be installed
through the tip of the spinner and back into the plate locking the
spinner onto the hub. We will notify you as soon as the modification kit
you paint the spinner and hub take care to mask off the area of each
that contacts each other to avoid paint interfering with the attachment
lugs. Paint only light color that will reflect sun light. A darker color
will heat up and cause the plastic to soften.