 MORE TROUBLE FOR BOWING. THE F-A-A IS ORDERING INSPECTIONS OF NEARLY 3-THOUSAND BOWING 737 PLANES BECAUSE OXYGEN MASKS COULD FAIL DURING AN EMERGENCY. THERE HAVE BEEN REPORTS OF OXYGEN GENERATORS ON PLANES SHIFTING OUT OF POSITION, WHICH COULD RESULT IN A LACK OF OXYGEN TO PASSENGERS. BOWING CALLED FOR VISUAL INSPECTIONS IN JUNE.