On Wednesday, December 20, 2017 at 1:43:19 AM UTC-8, Principal Secretary Cad wrote:

We have 1 IS28 B2 Romanian Glider in our fleet from last 35 years...

Many other operators of IAR sailplanes have made similar complaints. It appears that the factory has little or no interest, financial or otherwise, in the continued airworthiness of their former products, and no incentive to care. There are occasional promises of lifetime extension paperwork, but it appears that none have come to fruition.

If the glider has served you for 35 years, you have probably recouped your original investment in it several times over. Consider using it as a static display to promote soaring and buying a used ASK21 or G103 to replace it on the flight line.

I can show you how you can manufacture your own gliders in India if you want.