And unfortunately, they approached the problem from the wrong angle rather than as it should be. Even foreign manufacturers applied for technical support, although they stated that solving the problem was not possible, yet TAI considers this a sort of secret embargo and is spending thousands of engineering hours and resources to solve this issue. And this is wrong.
Even if one day TAI announces that these actuators are developed and produced locally, it won't fix this mistake. The mistake will still be there. Either they'll cut the parts that should be on the plane's horizontal stabilizers, or the plane will fly with a faulty design.
The source is a foreign company that TUSAS was thinking of assigning to produce these actuators. But the company reported to TUSAS that this is technically impossible. There are two other foreign companies applied as well. The report they sent to TUSAS is along the same lines.
I can take one more step regarding the source, but nothing more.