UPDATE 1-FTSE 100 dragged down by airlines; housebuilder rally falters <!-- no image --> <div>London's FTSE 100 weakened as investors dumped airline stocks after a bearish note from HSBC, while CYBG gained after the bank raised its target for cost savings.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=ajaov7xl3Qw:ei7nwGcrqHI:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=ajaov7xl3Qw:ei7nwGcrqHI:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=ajaov7xl3Qw:ei7nwGcrqHI:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=ajaov7xl3Qw:ei7nwGcrqHI:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=ajaov7xl3Qw:ei7nwGcrqHI:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/ajaov7xl3Qw" height="1" width="1" alt=""></div> Posted by Reuters