Leaf spring fractured and failed twice on the same side of RV following NTHSA mandated recall repair 16V579, and safety modification kit part# 425750. This time the leaf spring failure caused the tire to rub the wheel well and create enough friction to start the interior wheel well carpeting and a garment bag on there to ignite and smolder filling the interior cabin with smoke. Contacted manufacturer Forest River regarding this issue and to obtain information including torque settings and recall kit spacer dimensions on their installed recall modification kit. After not hearing back from Andrew at Forest River- Cherokee customer service for a week regarding (claim reference # [XXX]) I contacted him again and he claimed to have no resolution/answers for me. Following that telephone conversation , It has been well over 2 weeks and he has not responded back to my request regarding the NHTSA safety recall kit issues. If my personal safety is at risk while pulling this travel trailer I would like to know about it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)