Originally HB-XQM, G-CRST was the first UK registration worn by this helicopter. It became G-WRBI between Nov07 and Feb11 before it returned G-CRST. Tragically as G-CRST this was the helicopter involved in the Vauxhall crane crash in central London. See http:/?/?www.?aaib.?gov.?uk/?cms_?resources.?cfm?file=/?AAIB%20S1-?2013%20G-?CRST.?pdf