First, a COVID-19 fleet was set up at Aberdeen and that included G-MCGD which was the last of the GapSAR aircraft and had been the 11th spare S-92A of the UK SAR fleet normally at Stornoway. GD next appeared as LN-OQY with CHC on the new interim Tromso contract. In reality, 98% availability isn't hard to maintain with modern aircraft when every base already has two aircraft and the hours are low.
Then BHL won the Kustwacht contract and needed three AW189: two at Den Helder and one at Midden Zeeland. So that was meant to be one new-build, the 11th spare (G-MCGN from Inverness, I know it well) from the UK SAR fleet, plus G-OENC from Norwich which was their last crew change 189 in the UK. NC went to Dyce and was supposed to re-appear as a SAR aircraft registered as PH-RSQ but in the closing stages that plan changed.
Vergiate new-build s/n89015 was registered as PH-SAR at the end of October and at the same time G-MCGN was changed to Dutch registry as PH-NCG. A few days later, when the collapse of the plan for G-OENC was clear (reasons unknown), G-MCGW, taken from St Athans, came off the UK register on the day the contract started and was seen in Den Helder the following day, soon to appear on the Dutch register as PH-BSR.
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Only three SAR S-92A are needed for UKSAR2G and one might expect five to continue to be required for Ireland. However, there is an 18 month gap before seven SAR S-92A become available ... unless, ... you strip the second aircraft out of each of the five S-92A bases and the AW189s become the back-up and the crews are due to become AW189 and AW139 crews anyway.