Burlington Northern Santa Fe (BNSF) train delivers Boeing 737 fuselages to a Boeing manufacturing plant in Renton, Washington on February 27, 2014. Jason Redmond/Jason Redmond/Jason Redmond/Jason Redmond/Jason (Reuters) – WASHINGTON, July 15 (Reuters) – The Federal Aviation Administration (FAA) issued a directive to all Boeing (BA.N) 737 series airplane operators on Thursday to undergo inspections to address probable cabin altitude pressure switch failures. The rule mandates that operators examine the switches on a regular basis and replace them if necessary. The directive affects 2,502 planes registered in the United States and 9,315 planes worldwide. It was initiated after an operator reported that both pressure switches on three separate 737 models failed the on-wing functional test. David Shepardson contributed reporting, and Leslie Adler edited the piece. The Thomson Reuters Trust Principles are our standards./nRead More