Hourly activities:
00:00 - 00:45: Made up fishing BHA and installed PS-21 slips and sensor on ar.
00:45 - 01:45: Ran in with overshot from surface to 410 m.
01:45 - 02:30: Made up TDS to string and took up/down weight 83/80 ton and free rotation 750 NM. Ran in to 415 m and circulated 2000 LPM/4,4 bar over fish. Reduced flow rate to 1000 LPM and rotated 10 RPM. Moved down over fish at 417 m. Tagged fish and observed increase in pump pressure and torque. Stopped pumps and rotation. Sat down 10 ton.
02:30 - 04:15: Picked up and observed additional 2 ton pick up weight. Pulled out slowly from 424 m to 20 m.
04:15 - 04:30: Held tool box talk with crew regarding laying out overshot with fish.
04:30 - 05:15: Retrieved overshot with attached fish. Transferred complete assembly including fish from vertical to horizontal. Decided to backload overshot and fish to town for disassembly. 12-1/4" fasttrack tri mill was completely worn out.
05:15 - 05:30: Held tool box talk with crew prior to making up milling BHA.
05:30 - 06:00: Commenced to make up 12-1/4" trackmaster milling assembly.
06:00 - 07:00: Made up 12-1/2" trackmaster milling BHA
07:00 - 08:45: Ran in hole with trackmaster mill from 76 m to 417 m.
08:45 - 11:15: Prepared pit and surface flow system for displacment to milling mud. Flushed and cleaned pits and conditioned milling mud.
11:15 - 11:45: Displaced the well to milling mud with 2000 LPM 29 bar.
11:45 - 15:00: Took parameters up/down weight 106/102 ton RW 104 ton with 2knm. Started milling from 424 m to 428 m as per smith instructions time depth flow SPP RPM wob torque 12 00 424,3 1900 28,0 90 1 9-20 13 00 424,5 2370 39,0 110 5-6 9-14 14 00 426,3 2390 40,0 110 5-6 6-9
15:00 - 15:30: Milled out of casing at 428,2 m. Window 421,5 m and 428,2 m Reamed interval 428 m 420 m.
15:30 - 16:00: While reaming 428 m-420 m observed dropped object from derrick. Stopped rotation and pulled to 419 m. Circulated bottoms up at 3000 LPM 59 bar. Bolt dropped down on rig floor from derrick.
16:00 - 21:00: Racked back stand depth 416 m and investigated dropped object. Meanwhile monitored well on trip tank. A 0,17 kg bolt had loosened and unscrewed from the TDS and dropped 30 m to rig floor joule). Re-installed bolt and lock wire. Changed out other damaged lock wires. Further investigated for loose items and potential dropped objects.
21:00 - 21:15: Ran in from 416 m to 428 m.
21:15 - 00:00: Drilled formation and opened window with 12-1/4" string mills from 428 m to 435 m. Time depth flow SPP RPM wob torque 22 00 430,0 2390 44,0 110 0-1 7-9 24 00 435,0 2370 46,0 110 0-1 6-9

24-hour summary: Ran in hole with 12-1/4" trackmaster milling assembly and milled window from 424,3 m to 428,2 m. Continued to drill formation and mill window with string mills to 436, 5 m. Water melon mill 2 m out of window. Reamed and dressed the window from 421,5 m to 428,2 m Slided through window with milling assembly. Picking up a few tons of weight at 421 m and 425m. Displaced the well to 1,20 SG KCL/POLYMER mud and flow checked. Pulled out of the hole from 436,5 m to 200 m experienced a dropped object on the rig floor. A 0,17 kg bolt came loose on the TDS and dropped 30 m to rig floor joule). The incident was investigated. The bolt was re-installed and the TDS was further checked for loose items.