AFETY AGENCY TO FEDERAL AVIATION ADMINISTRATION FLIGHT RULES (SUPERSEDED BY SB 737-34-2300 RI). SERVICE BULLETIN MOS RECOMMENDED SS 737-34-2327 NAVIGATION - FLIGHT MANAGEMENT COMPUTING - DIP SWITCH POSITION CHANGE. SERVICE BULLETIN RECOMMENDED MOS 05-DEC-2011 SS 737-34-2384 NAVIGATION - WEATHER RADAR SYSTEM - INSPECTION AND REPLACEM