According to http://avherald.com/h?article=47a9c698&opt=0
A Singapore Airlines Boeing 777-200, registration 9V-SVC performing flight SQ-324 (sched dep Sep 19th, act dep Sep 20th) from Singapore (Singapore) to Amsterdam (Netherlands), was enroute at FL380 about 15nm southwest of Prague (Czech Republic) when the crew requested a descent to FL300 reporting technical issues, subsequently explaining they did not need any assistance but had a cracked windshield. The aircraft continued to Amsterdam, near Frankfurt/Main (Germany) the aircraft needed a further descent to FL250. The aircraft landed safely on Amsterdam's runway 18R about one hour after leaving FL380.
Comment