(Reuters) - United Technologies Corp, maker of Pratt &amp; Whitney engines, said on Thursday it would cut the overall size of its pension liabilities by about $1.77 billion in 2016.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=GXSbl_GUN80:DJb9-YNZM5E:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=GXSbl_GUN80:DJb9-YNZM5E:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=GXSbl_GUN80:DJb9-YNZM5E:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=GXSbl_GUN80:DJb9-YNZM5E:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=GXSbl_GUN80:DJb9-YNZM5E:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/GXSbl_GUN80" height="1" width="1" alt="" />