SINGAPORE - FEBRUARY 17: Top deck business class cabin and cockpit in front in Singapore Airlines' (SIA) last Boeing 747-400 aircraft at Singapore Airshow on February 17, 2012 in Singapore
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SINGAPORE - FEBRUARY 17: Top deck business class cabin and cockpit in front in Singapore Airlines' (SIA) last Boeing 747-400 aircraft at Singapore Airshow on February 17, 2012 in Singapore