737NG Speed restrictions
Can anyone enlighten me about a conversation I had with a neighbouring ATCC yesterday?
It concerned a 737-900 which was crusing at FL 240 and was speed-restricted to 270 KIAS. The controller said that this is the case with all the 737NGs and had something to do with icing. It was news to me, and if it is a blanket restriction it can cause problems when I try to get one to do 300kts+ to keep him in his place in a stream.
Can someone confirm or deny this and give a little more detail?
Thanks.