My understanding is that G-XCEL was on its second test flight after a gearbox change.
DGAC issued an Emergency AD last week regarding free-wheel slippage, grounding any AS355 with a combiner gearbox that has had less than 10 hours since overhaul by EC.
http://213.30.153.174/GSAC/ad_cns.ns...il_FR?OpenPage
Coincidence or connection?