Late last night preparations for pumping acid into the well were finalized. Shortly before 24:00 the acid was pumped into the well. During pumping the end of the drill string was 1.20 m above the fish. At 04:00 this morning the string was connected to the fish again. The fish was still stuck. A slight change was noticed though as ~1 L/s can be pumped through the string at 100 bar pressure. This morning preparation for a second acid batch began. Unfortunately backing off resulted in a very low hook load implying that we unscrewed at ~500 m depth. We are now POOH to examine the threading of the bottom single.