Saddened and utterly shocked when I heard about this from a mutual friend yesterday.
I knew Tim through IOT and Basic JP, but courses and postings meant we went our separate ways for 30'ish years and we lost touch. Then by good luck our paths crossed again, and circumstances subsequently dictated that we'd meet every couple of months or so and have time to sit and chew the fat, and compare notes about careers, airlines and the world in general.
He was always, as Winco said, a "bloody nice guy".
RIP Tim.