Technically, while the Sea King had been retired from UK military service some years ago.....there was still two that remained airworthy and flying since then on the military register, and a third was later brought back to airworthy. These 3 could be seen on a regular basis flying during the past 5 or so years around the south coast, being operated by HeliOps in Portland who have been operating 3 x ex-RN Mk.5's on the military register under a contract to train German Marineflieger SAR aircrews for a good few years, who still operate the Sea King
Yes I was aware of these few privately operated Sea Kings but didn't realise that they were the ones being donated to Ukraine.