Hourly activities:
00:00 - 01:30: Continued to open hatch covers on all levels for f-8, f-9 and f-10.
01:30 - 02:15: Lowered boat collision stool down to centralizer deck. Prepared and lowered flow line hose down to XMT deck.
02:15 - 04:15: RIH with production riser to put guidewire clamp in convenient working height at centralizer deck. Caught guidewires and attached to ROV hooks/slings on guidewire clamp. Ran guidewires individually to 2 m above riser guide funnel at seabed. RIH to 37 m and hung off production riser in riser spider.
04:15 - 06:00: Picked up 2nd double 2 ea standard joints with simultaneous lift by deck crane and TDS. Removed handling tool type e from 1st double. Made up connection using bolt tensioner tools. Tested flange to 3000 psi through test port OK. Installed bolt caps and fairings. Meanwhile installed guide wires on template fix between f-9 and f-10 and between f-3 and f-4 using ROV. Sea current is in direction of f-13.
06:00 - 06:30: RIH with production riser to 66 m. Hung off production riser in riser spider. Removed handling flange type e.
06:30 - 09:15: Picked up 3rd double lower STD joint and splash zone jnt with simultaneous lift by deck crane and TDS. Made up connection using bolt tensioner tools. Tested flange to 3000 psi through test port OK. Installed bolt caps and fairings. RIH with production riser to 95 m. Hung off production riser in riser spider. Removed handling flange type e.
09:15 - 12:15: Picked up 4th double upper pup joint and tensioner joint with simultaneous lift by deck crane and TDS. Made up connection using bolt tensioner tools. Tested flange to 3000 psi through test port OK. Installed bolt caps and fairings. RIH with production riser to 118 m. Hung off production riser with hang off plate in riser spider. Removed handling flange. Picked up stand with premade running flange. Made up flange to tensioner joint. Picked up weight and removed hang off plate.
12:15 - 12:45: RIH on 5 1/2" DP stand to land TBC on wellhead. Observed with ROV in riser guide funnel window while coming down. Ran TBC to 10 cm above bottom of window.
12:45 - 13:45: Released 6 MT guidewire from template and ROV hook on riser guidewire clamp. Retrieved guidewire to surface. Released 10 MT guidewire. Hooked 10 MT guidewire on funnel. Removed RLGF.
13:45 - 16:15: Confirmed orientation of TBC ROV panels. Ran and established hotstab in TBC receptacle. Landed TBC/PRODUCTION riser on wellhead and set down 15 MT. Verified TBC fullly landed by oserving marker/band on TBC. Locked TBC connector by pressurising port a1 to 2500-3000 psi. Observed upwards movement on TBC upper body when locking TBC. Took 10 MT overpull on TBC to verify locked. Informed production to start up f-4 and f-5. Moved hotstab to port b1 and flushed lower dog cavity and upper piston cavity according to vetco procedure.
16:15 - 18:00: Lined up CMT unit to standpipe to fill riser with SW while venting air through valve on top of tension joint. Closed valve. Performed pressure test of PR to 20/70 bar for 5/10 min using SW. Dropped 0. 3 bar/10 min 4 447 ltrs pumped and 400 ltrs bled back. Maintained 10 MT overpull on PR throughout the operation.
18:00 - 21:00: Drained DP via needle valve on tensioner joint. Flushed TBC with corrosion inhibitor and retrieved hot stab to surface. Retrieved guidewires to surface and removed guidewire clamp from PR.
21:00 - 22:45: Lifted norse cutting equipment down to tensioner deck and prepared line-up for installing hatches. Meanwhile prepared equipment for installing tensioner system on centralizer deck.
22:45 - 00:00: Re-installed hatches on f-8 and f-10.

24-hour summary: Continued MU and RIH with production riser. Landed riser and locked tie-back connector. Installed centralizers, boat collision stool and tension ring.