Found this on SQ website today whilst trying to book award flight... No A380?! Pah, may as well book AirAsia then, since the taxes for my Award flight are almost the same price!
JAPAN FLIGHTS
11 April 2011
To better match capacity to demand, there will be changes in aircraft type for the following flights:
SQ633/634 (between Singapore and Tokyo Haneda)
A retrofitted Boeing 777-300 aircraft will operate these flights instead of Airbus A330-300 aircraft from 1 July 2011.
SQ635/636 (between Singapore and Tokyo Haneda)
Boeing 777-200 aircraft will be deployed instead of Airbus A330-300 aircraft from 8 May 2011 for SQ636 (Singapore – Tokyo Haneda) and from 9 May 2011 for SQ635 (Tokyo Haneda – Singapore), when this return service is reinstated following a temporary suspension. The flights will return to A330-300 operations from 1 July 2011 for SQ636 and 2 July 2011 for SQ635.
SQ637/638 (between Singapore and Tokyo Narita)
SQ638 (Singapore – Tokyo Narita) and SQ637 (Tokyo Narita – Singapore) will be operated by Airbus A330-300 aircraft instead of Airbus A380 aircraft from 17 and 18 April 2011 respectively, with the exception of SQ638 on 28 April and SQ637 on 29 April, which will be operated by Airbus A380 aircraft. From 1 and 2 July 2011 respectively, SQ638 and SQ637 will be operated by Boeing 777-300ER aircraft.