Ah yes, the 'Pope Mobile'. The last time I came across this particular machine was in Taiwan back in February 1999. The historical records of Bell 412SP, S/N 33179 then registered locally as B-55521 and operated by Daily Air Corporation, clearly stated that the helicopter was previously equipped with wheeled landing gear and an airstair door manufactured by Premier Aviation. Both the Daily Air personnel and the BHT CSR confirmed it was used to fly His Holiness - when he was in the US. In the furthest reaches of my mind I do recall seeing a photograph of John Paul II boarding this helicopter via an air stair door whilst waving to the assembled crowd.
Therefore after reading Encyclo's post above, in which he states "...bought about 10 Bell 412HPs and most were delivered on fixed wheel gear. Even the Pope Mobile (412 in Poland used by the Pope at one point) was on wheel gear...." suggests there was more than one fixed wheeled 412 'Pope Mobile', anyone got any ideas?