Hourly activities:
00:00 - 00:15: B/o TDS and performed TBT for POOH and racking 3 1/2" DP stands.
00:15 - 01:00: POOH w/ FLX cutting BHA on 3 1/2" DP from 499 m to 345 m. Pulled wet.
01:00 - 01:30: Troubleshot pipe grip on aft PRS. Switched to FWD PRS.
01:30 - 03:15: POOH on 3 1/2" DP from 345 m to 28 m. Experienced problems racking stands in foldable fingerboard with FWD PRS.
03:15 - 03:30: Removed slips and bowls.
03:30 - 03:45: Pulled cutting BHA above rotary and inspected nogo ring and cutter. No mark indications, knives closed and taped.
03:45 - 04:00: Performed TBT for laying out of BHA.
04:00 - 04:15: Cleaned rigfloor after wet trip prior handling BHA.
04:15 - 05:30: L/d FLX cutting BHA.
05:30 - 06:15: Cleared rigfloor and changed handling equipment.
06:15 - 07:00: Prepared drift run with 5,75" taper mill. P/u spear assembly with taper mill. Meanwhile discussed way forward with onshore organization.
07:00 - 07:15: Performed TBT with day shift, discussed TOFS and MOC.
07:15 - 07:30: B/o taper mill and l/d spear assembly.
07:30 - 08:15: Changed handling equipment from 5 1/2" to 3 1/2". M/u 5 3/4" taper mill to 3 1/2" DP.
08:15 - 09:00: RIH w/ drift BHA on 3 1/2" DP from surface to 462 m.
09:00 - 09:15: M/u TDS and washed from 462 m to 474 m w/ 1000 l/min, 43 bar.
09:15 - 10:15: Reamed from top 7" tubing cut at 474 m to 476 m w/ 1000 l/min, 43 bar, 50 RPM, 3-4 KNM. Made 3 passes. No obstructions.
10:15 - 11:00: Racked circulation stand. RIH w/ 5,75" drift BHA from 462 m to 505 m, passing through DHSV and FLX-4.
11:00 - 12:15: POOH from 505 m to 0 m. Pulled wet.
12:15 - 12:30: Cleaned and cleared rigfloor after wet trip.
12:30 - 13:00: Changed handling equipment from 3 1/2" to 5 1/2".
13:00 - 13:15: Performed TBT prior to handling rig tongs.
13:15 - 16:30: Re-arranged FLX cutting BHA as per baker instructions. Measured m/u BHA and double checked space out.
16:30 - 17:00: Surface tested cutter blocks, 200 LPM, 5 bar. RIH w/ BHA to 33 m.
17:00 - 17:30: Removed auto slips, installed PS 21.
17:30 - 18:00: RIH w/ FLX cutting BHA on 5 1/2" DP from 33 m to 462 m.
18:00 - 18:30: Filled string w/o screwing in to avoid premature cutter activation, 400 LPM 3 bar.
18:30 - 19:15: RIH to 499,7 m bit depth. Set down 4 t weight, unable to pass FLX id) with 5,75" STB. Pulled free with 6 t overpull. Attempted to rotate 5 RPM, 8 KNM. String stalled out. Pulled free w/ 10 t overpull and discussed way forward.
19:15 - 20:30: POOH w/ FLX cutting BHA on 5 1/2" DP from 499 m to 33 m. Pulled wet.
20:30 - 20:45: Removed PS 21 slips and installed master bushings.
20:45 - 21:00: Held TBT for handling BHA.
21:00 - 21:15: Pulled BHA from 33 m to surface.
21:15 - 22:45: Inspected BHA. Observed marks on stab shoulder. Secured knives. B/o stab and re-installed same higher up in BHA. Removed master bushing and installed PS 21 slips.
22:45 - 23:45: RIH w/ modified FLX cutting BHA on 5 1/2" DP from 33 m to 474 m.
23:45 - 00:00: Entered top of cut at 474 m, continued to run in. Landed 8" nogo on top of cut at 503,1 m bit depth.

24-hour summary: POOH with cutting BHA L/d same. M/u drift run BHA w/ 5 3/4" taper mill. RIH washed/reamed top of 7" tubing cut, RIH to 505 m, passing DHSV and FLX. POOH and l/d drift BHA. Re-arranged FLX cutting BHA and RIH to 499,7 m. Unable to pass restriction at 499,7 m. Evaluated situation and POOH. Re-postioned 5 3/4" stab in BHA and ran back in. Entered 7" tubing cut at 474 m and landed 8" nogo on top cut m bit depth).