Utility Trailer Manufacturing Company (Utility) is recalling certain model year 2014-2015 FS2CHA, VS2DX, VS1DC, VS2RA, and VS1RA trailers manufactured April 14, 2014, to November 4, 2015, equipped with certain Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators manufactured January 9, 2014, to October 28, 2014. The affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator.