SOME TEMPERATURE SENSITIVE TRIGGERS WERE NOT X-RAYED. THESE TRIGGERS COULD CONTAIN INTERNAL VOIDS THAT WOULD MAKE THE TRIGGERS SUSCEPTIBLE TO ADVANCED CREEP CAUSING FALSE ACTIVATION AND VENTING OF THE CNG.
VENTING OF THE CNG COULD RESULT IN A FIRE.
THOMAS BUILT WILL REPLACE THE TYPE III PRESSURE RELIEF VALVE WITH THE NEWER DESIGN "GENERATION 2.5" PRESSURE RELIEF DEVICE.
SYSTEM: FUEL; CNG; PRESSURE RELIEF VALVE/DEVICE.VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES POWERED BY COMPRESSED NATURALGAS (CNG) ENGINES AND EQUIPPED WITH LINCOLN COMPOSITE CNG FUEL CONTAINERS WHICH INCORPORATE MIRADA TYPE III PRESSURE RELIEF VALVES. (SEE MIRADA CAMPAIGN NO. 95E025 AND LINCOLN CAMPAIGN 95E025003).NOTE: IF THE VALVES HAVE NOT BEEN REPLACED WITHIN A REASONABLE TIME FREE OF CHARGE, PLEASE CONTACT THOMAS BUILT AT 1-910-889-4871. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.