NHTSA campaign 14V436000
Hazard
Blue Bird Body Company (Blue Bird) is recalling certain model year 2013-2014 All American rear engine school buses manufactured July 21, 2011 to April 30, 2014, and equipped with CNG fuel systems and delivered to or registered in the following "Cold Weather" states: Colorado, Pennsylvania, Utah, and Wyoming. In the affected vehicles, an O-ring in the pressure relief device for the compressed natural gas (CNG) system may fail at cold temperatures resulting in a natural gas leak.
Consequence
A natural gas leak in the presence of an ignition source could potentially cause a fire or explosion.
Remedy
Blue Bird will notify owners, and dealers will replace the original pressure relief device and o-ring with a new one, free of charge. The recall began on September 8, 2014. Owners may contact Blue Bird customer service at 1-478-822-2242. Blue Bird's number for this recall is R14XH.
The text above is quoted verbatim from the NHTSA record. Confirm the affected units and the remedy with the manufacturer or NHTSA. Recall data may be incomplete, delayed, or superseded.