You will find that the Mk 2 spent more time in service as an AEW rather than as the MR variant (17 years maritime: 20 years as AEW).
Er... what about WL738 and WG556? Both were built in 1952 and served until 1978 and 1980 respectively, which put them at 26 and 28 years all spent as MR Mk2..?
