Fuel system, other › Storage › Tank assembly › Pressure relief devices
Neoplan AN440
Reported Aug 30, 1995101 vehicles affectedNEOPLAN USA CORP.Built Jun 1, 1992 – Jul 1, 1994
The defect
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.
The risk
Venting of the CNG could result in a fire.
The remedy
Neoplan will replace the prd with the newer design "generation 2.5" pressure relief device.
System: fuel; CNG; pressure relief valves/devices (prd).vehicle description: compressed natural gas powered transit buses equipped with lincoln composite CNG fuel containers which incorporate mirada type iiipressure relief valves. (See mirada campaign 95e025 and lincoln composite campaign 95e025003).note: if the valves have not been replaced within a reasonable time free of charge, please contact neoplan at 1-719-336-3256.also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.