Tekin is definitely a tricky strip in a tight valley with no room for error anywhere. It's reputation of having winds swirling from all directions is absolutely true and most seasoned aviators avoided it after lunch. Oksapmin, whilst it had winds all over the place in the afternoon, at least gave you a choice which ridgeline you flew towards after takeoff to avoid downdrafts. In the 80s there were T Shirts doing the rounds with " I landed at Tekin and survived". It was not said in jest. Glad they all walked away.