Hi Genghis
Not much to report from my point of view (fair size offshore commercial helo fleet). We did fleet sampling C of A flight tests so each airframe was test flown every 3 years. Very seldom anything to report on the Puma fleet. The mediums (Dauphin and S76) tended to fail height climbs and need some fettling, but that was always expected and a good way of keeping an eye on things. We and our competition are in the process of introducing a Company continued airworthiness flight test (C of A in all but name) to keep oversight of the state of the fleet.
Cheers
Steve