On 23 jun, 23:55, Mxsmanic wrote:
Hatunen writes:
Again you display your actual lack of knowledge and willingness
to display it in public. First, there is no FAR prohibiting the
demonstration or practice of doing spins.

Spins must be permitted for the aircraft, and regulations permit them (and
other aerobatic maneuvers) only under certain conditions. In this case, the
Cessna 150 may be spun only after certain modifications are made (since 2009),
in part to prevent maximum rudder travel from interfering with the elevators.
Yes, I have the AD in front of me.

Better start reading that AD.
a. Not all Cessna 150's are affected by this AD, just the ones with a
swept tail.
b. It has nothing to do with the rudder interfering with the elevator
but the head of rudder stop bolts got hooked.