The confused pilot thought the dial, which is featured in the third annual exhibition of ice art, was the ideal spot to park his chopper.
Designed in collaboration with Jaume Plensa, the illuminated disc is one of six works on show in the Italian Alps and is being hailed as a key attraction for visitors to the Winter Olympic Games in Turin.
It is not the first time an exhibit at the Snow Show has proved problematic. On the opening day of the inaugural exhibition in Finland in 2004, the 'colourful' piece by Anish Kapoor and Future Systems collapsed due to the heat of the lights incorporated in the structure.
The Snow Show 2006 runs until 19 March and sketches of Foster's sculpture will be published in the AJ on 23 February.